Installation of additional 2nd unit
Possibility of installation on a single stroller (see "Type") of an additional unit, simultaneously with the main one.
Features of the use of this function may be different, depending on the type (see "Design") and the specific model of the stroller. So, in pushchairs models, the
installation of the second unit, usually, is used to turn a single stroller into a double one; at the same time, the additional seat, like the main one, is a seat unit with the kid sitting. However, it should be borne in mind here that the second unit is usually located behind the main one, in the lower part of the structure, and the kid sitting in such a place sees only the back of the front seat.
In turn, among the universal strollers there is a more specific option — the ability to install both the carrycot and the seat unit supplied in the kit on one chassis at once. This allows you to keep both accessories ready and use them depending on the situation: for example, at the beginning of a long walk, you can put the kid in the seat unit, and when he/she gets tired and wants to sleep, put him/her in the carrycot. The seat and carrycot are also installed at different levels, but changing them over is usually a matter of seconds.
Adjustable footrest
The ability
to adjust the position of the footrest, on which the legs of the baby in the stroller rest.
A similar ability is found in some strollers, transformers and strollers of universal strollers (see "Design"). The footrest itself is an inclined surface attached to the front edge of the seat. Adjustable footrests are those in which the angle of inclination can be adjusted; in many models, this footrest can even be set horizontally. This makes it possible to choose the most comfortable position for the baby's legs in different situations.
Fastening in the direction/against the movement
In strollers with this function, the seat unit can be fixed in one of
two positions, to choose from: facing the parent (against the direction of movement) or facing away from the parent (in the direction of movement). Each option has its advantages: in the first case, the baby can see a familiar face and is less nervous, and when located in the direction of movement, it is more convenient for him/her to view the world around him/her.
Bumper bar
A feature used in walking seat units where the child is sitting.
The bumper bar is a horizontal handrail installed in front of the baby seat. The child can hold on to such a handrail; in addition, such a device reduces the risk of falling out of the stroller, and for additional security, the bumper bar can be supplemented with a crotch strap (see below). To make the stroller more convenient to store, transport and clean, the bumper bar is often made removable; in some models, it also serves as a carrying handle (see above).
Viewing window
A window made of transparent or translucent material, built into the hood that covers the cradle or seating unit. In the version with a walking block,
the viewing window is usually located so that the parent can see the baby directly while moving, without being distracted from controlling the stroller. In cradles, the parent can see the child through a window by approaching the stroller from the side of the hood (that is, on the opposite side of the handle); implementations with a window in the front hemisphere of the hood are less common. In addition, a baby lying in a cradle can usually see the outside world through the window (primarily the sky above the stroller). The viewing window can be made in the form of oilcloth or a mesh mosquito net, through the holes of which air freely penetrates, but insects and small debris raised by the wind are retained.
Carrycot installation
The ability
to install a carrycot on the stroller — a characteristic basket in which the baby can lie comfortably.
Carrycots are used mainly for very young kids (up to 6 – 8 months), who can not yet sit normally in seat units. And the possibility of installing such an accessory by definition is available in all universal strollers (see "Design"). Also, the replacement of the seat unit on the carrycot can be provided in pushchair models. In fact, such strollers are also universal – but they are not initially equipped with carrycots, and therefore belong to the category of pushchairs.
Car seat installation
The possibility
of installing a child car seat on the chassis of the stroller. This feature can be very useful on car trips: the car seat can be used both in the car and as a seat unit for a stroller, and the main seat unit can be left at home so that it does not take up space in the boot. Note that some models with this function are initially equipped with a suitable car seat; if it is purchased separately, you should pay special attention to compatibility with your stroller.
Handle height adjustment
Possibility
to adjust the stroller handle in height. This function allows you to optimally adjust the length of the handle to the height of the parent. It will be especially useful if the parents are of different heights, and each of them regularly carries a stroller.
Typically, height adjustment is carried out by lowering or raising the upper segment of the handle, and in advanced implementations
a telescopic mechanism is responsible for it. The retractable handle makes the stroller more adaptable to different situations and conditions. For example, it can be lengthened for more comfortable walking or shortened for ease of use in tight spaces.
Frame material
The main material from which the frame of the stroller is made.
— Aluminium. The material used in the vast majority of modern strollers of all price categories. This is due to a number of advantages: aluminium is light and at the same time durable, it does not rust and is not afraid of moisture, it lasts a long time, it looks nice, but it is relatively inexpensive — somewhat more expensive than steel, but noticeably cheaper than more advanced materials like carbon.
— Steel. Steel frames are as strong as aluminum frames, and they are much cheaper. On the other hand, they are quite heavy, so steel is used less often in strollers.
— Magnesium alloy. Premium Material: Stronger and more durable than aluminium, just as lightweight, but at a significantly higher cost. It is extremely rare, in single models of expensive strollers.
— Carbon. Another high-end material: carbon fiber filled with plastic. This combination gives excellent strength - comparable to steel — at a very low weight. However, carbon is very expensive, and these advantages are rarely decisive for strollers — in most cases simpler materials are enough. That is why carbon frames have not become widespread.
— Plastic. Plastic itself is easy to manufacture and relatively cheap; it is also not as cold to the hands in cool weather as aluminum or steel. However, modern strollers very rarely have frames made of this material. The fact is that low-cost varieties of...plastic are not strong enough for this; and high-quality varieties cost accordingly - their price is close to aluminum, or even higher.
— Fibreglass. In this context, "fibreglass" typically refers to glass fibers mixed with plastic filler. Unlike conventional window glass, glass fibers are flexible and strong. The plastic filler enhances durability by offering scratch and tear resistance. The result is a material that is lightweight and very strong. However, fibreglass is prone to brittleness, especially with point impacts, and is susceptible to abrasion. As a result, it isn't widely used in strollers.
