The XGAK Group Accessory Kit provides multiples of all the TANK training tools so two users can train with the TANK simultaneously. The kit includes: Two V-Strap Handles Two Padded Waist Harnesses with Tow Straps Two 1.5″ x 30′ Tow Ropes with quick Attach Carabiners Two Combination Cable Locks Waterproof Nylon Drawstring Bag *Sprint training is not recommended with the TANK M1 unless used with the TANK M1 Dumbbell Cradles for added traction.