Designed to strengthen your fingers and enhance grip, making it a must-have for climbers looking to improve. Suitable for both beginners and experienced climbers to help refine rock climbing techniques. Lightweight and portable, ideal for training on the go, allowing you to set up a hang board or tension board anywhere. Features 3 pocket sizes: 15 mm, 20 mm, 25 mm, and mono (0.59 in, 0.79 in, 0.98 in, and mono). Dimensions: 11 cm x 12 cm x 3 cm (0.43 in x 0.47 in x 0.12 in). Material: Beech wood.