Set of 12 bolt on crimp rock climbing holds. These are professional quality holds shaped in the USA by Rock Holds. Our 30 years of experience of shaping holds has created a durable quality hold used on home walls and in gyms across the world. These crimps are positive and skin friendly and will increase overall finger strength. Some climbing experience recommended. Bolt on holds bolt in to T-nuts (not included) that are pre installed into your exisiting plywood climbing wall. T Nuts and bolts are not included.