prices on 1 model
M
— medium sized feeders. They can be made in different sizes and proportions. For example, in some models, the length is about 5.5 cm, and the diameter is 4 cm, which gives a capacity of 60 – 70 mL. Others are only 3 cm long and about the same in diameter — even smaller than in S-models; however, the greater weight and thinner walls, which improve capacity, make this product a medium feeder.