Image Item No. Description By  90617  Hero Factory Arm / Leg with Ball Joint and Ball Socket Catalog: Parts: Hero Factory 75  90609  Hero Factory Arm / Leg with Ball Joint on Axle and Ball Socket Catalog: Parts: Hero Factory 91  90605  Hero Factory Arm / Leg with Ball Joint on Axle and Ball Socket and 4 Pin Holes Catalog: Parts: Hero Factory 2  90641  Hero Factory Armor with Ball Joint Socket - Size 3 Catalog: Parts: Hero Factory 80  90638  Hero Factory Armor with Ball Joint Socket - Size 6 Catalog: Parts: Hero Factory 1  93575  Hero Factory Fist with Axle Hole - 4 Fingers Catalog: Parts: Hero Factory 181  92238  Hero Factory Mask (Witch Doctor) Catalog: Parts: Hero Factory 2