Please note that the chocks are purely decorative and not suitable for climbing. It includes four random-color nuts (or you can customize by messaging us with your preferred colors). Ideal for rock climbing enthusiasts and those who love unique decorations. Rock Climbing, Outdoor Activities, Keychain, Rock Climber, Rock Climbing Gym, Free Climbing, Climbing Gear, Keyring, Outdoor Adventure, Climber, Climbing Tools, Rock Climbing Games, Rock Climbing Sports To purchase our Rock Climbing Keychain Set, simply visit this link: https://www.amazon.com/dp/B0DCZXSBQH