Feature:1. Multiple holding positions, necessary for the training wall on the court and the training board for climbing. 2. Short-term use can quickly improve grip strength, finger strength, climbing force on the oblak. 3. Smooth and easy to grip, comfortable and painless, even with long hold. 4. Suitable to be installed in the frame of the family door, the training wall of the climbing gym for strength and physical training. 5. Effective tool for exercising at home, with screws, easy to install, suitable for home and climbing use and RV training. . Rock Climbing Fingerboard Grip Strength Specification: Item Type: Fitness Climbing Fingerboard Material: White solid wood wax Weight: about 800g/28.2 oz . Rock Climbing Fingerboard Grip Strength Package List:1 x Climbing Fingerboard 6 x Screw Spike 6 x Plastic Expansion Pin . Rock Climbing Fingerboard Grip Strength