Size 1 soccer balls

№1

— balls with a diameter not exceeding 13.69 cm and, accordingly, a circumference not exceeding 42 cm; the weight is not normalized, but it is, by definition, small. The smallest of the standardized sizes, such balls are often used as promotional or souvenir balls (see "Purpose"), but in fact it makes sense to use them in the games of the smallest football players — up to 5 years old.