This maintains the lower limb slightly raised, which improves blood circulation and reduces the risk of swelling

Rozmiar
A
B
C
User height
0*
15 cm
41 cm
12 cm
< 140 cm 
1
20 cm
60 cm
15 cm
< 140 cm
2 20 cm 70 cm 15 cm 141 – 165 cm
3 25 cm 70 cm 17 cm 141 – 165 cm
4 25 cm 80 cm  7 cm  > 165 cm