Just add plywood This 30-hold combo kitof Revolution climbing holds makes a great all-purpose starter set for your training wall. Random colored and shaped holds provide endless route-setting possibilities kit includes all necessary mounting hardware for secure placement. Combo kit includes 10 foot jibs, 10 hand jibs, 4 small holds, 3 medium holds, 2 large holds, and 1 extra-large hold. Comes with 10 T-nuts, bolts and wrench for large holds, as well as wood screws for small holds and jibs. The size and shapes of these holds help maximize space usage and create an almost unlimited number of climbing routes for training and recreation. Holds offer a variety of edges, pockets, pinches, jugs and slopers for improving finger strength and footwork. Nonslip texture and sculpted shape is finger- and tendon-friendly for extended climbing sessions and effective strength building. Careful tweaking of the proprietary resin mix yields stronger, more economical holds with better resistance to chipping and chalk buildup.