Non-bounce design – haitarudi juu baada ya kuigonga chini, salama kwa mazoezi ya nguvu. �
Kraftathlet +1
Material ngumu na durable – rubber/vinyl yenye uimara mkubwa dhidi ya kupasuka au kuchakaa. �
McSport +1
Grip nzuri ya anti-slip – texture maalum inayoshika vizuri hata ukiwa na jasho. �
Kraftathlet +1
Inafaa full body workout – hutumika kwa core, mikono, mabega, miguu na kuongeza explosive power. �
SELF +1
Sand-filled core – huipa uzito balanced na kuzuia kuroll ovyo wakati wa mazoezi. �