Image Item No. Description  90617  Hero Factory Arm / Leg with Ball Joint and Ball Socket Catalog: Parts: Hero Factory  90609  Hero Factory Arm / Leg with Ball Joint on Axle and Ball Socket Catalog: Parts: Hero Factory  90639  Hero Factory Armor with Ball Joint Socket - Size 5 Catalog: Parts: Hero Factory  93575  Hero Factory Fist with Axle Hole - 4 Fingers Catalog: Parts: Hero Factory  90661  Hero Factory Foot with Ball Socket Catalog: Parts: Hero Factory  90625  Hero Factory Torso, Medium with 9 Ball Joint Catalog: Parts: Hero Factory