[Wooden Material] This finger and wrist strength competition board props trainer is made of sturdy wooden material with smooth sanded edges and no burrs, the eco friendly fingertip and wrist strength training aid is enduring and can be used for a long time. [Ergonomic Design] Through the combination of kinesiology and ergonomics, this strength trainer ensures maximum grip strength and safety in every training session, which can be used safely and securely. [Enhanced Flexibility and Strength] Our finger strength trainer features an integrated design that prevents and relieves hand fatigue and discomfort, which allows you to improve overall hand strength and dexterity while increasing stability and grip for better control. [Strengthed Hand Muscles] This trainer has been professionally designed to improve finger grip and also strengthens hand muscles, effectively strengthening the fingers and wrist for good performance. Interactive Grip Improvement: Engages climbers in interactive grip strengthening, elevating party excitement and fitness. Color:As Shown Material:Wood Package Contents: 1 * Finger Gripper Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.