Features: Comprehensive Hand Strength Training: Versatile spring steel hand grip strengthener provides a complete workout for finger hand and forearm muscles perfect for rock climbing enthusiasts and muscle building. Portable and Ergonomic Design: With its compact and portable design our finger strengthener is perfect for on-the-go use allowing you to improve flexibility and build muscle anywhere anytime. Anti-Breakage Metal: Crafted from durable materials our finger ball exerciser is designed to withstand intense workouts providing stress relief and rehabilitation without the worry of breakage. Enhanced Flexibility and Stress Relief: The ergonomic design of the finger strengthener helps improve flexibility and reduce stress. Its unique spring mechanism provides resistance for effective muscle strengthening making it an essential tool for stress relief and rehabilitation. Compact and Travel-Friendly: Portable finger strengthener is the perfect companion for those on the move providing a convenient way to stay on top of your muscle building and injury recovery goals. Specification: Material: Spring Steel Size: 10*5cm Weight: 168g includes: 1 *Spring Hand Grip Strengthener