Product Name: Grip Training Device Product Size: 16*11cm / 6.2*4.3in Spring Diameter: Approximately 0.4cm / 0.16 inches Strength Range: 5-100KG Product Color: As shown in the image Product Material: PP + High Carbon Steel Product Features: 1. Ergonomic Design: Designed with an anti-slip surface and ergonomic shape, this hand grip trainer is ideal for improving finger and hand strength. Comfortable and safe for all hand sizes. 2. Adjustable Resistance: Built with high-intensity, thickened stainless steel springs. Offers durable, rust-resistant, and wear-resistant performance for long-term use. Strength adjustable from 5 to 100KG. 3. Progress Tracking: Equipped with an intelligent counting system and clear LCD display to help monitor training progress and results. Encourages consistent improvement with every workout. 4. Versatile Use: Ideal for strengthening fingers and forearm muscles. Suitable for athletes, musicians, and gamers seeking improved grip strength and flexibility. Its comfortable grip and durable construction make it a valuable addition to any fitness routine. 5. Ideal Gift Choice: Enhances grip strength, endurance, and agility. A great training aid for tennis players, baseball players, golfers, and climbers. Also makes a thoughtful gift for fitness enthusiasts. Durable design withstands intense training sessions. Designed for all hand sizes with measurable progress tracking. Precautions: 1. Due to variations in display settings, the actual product color may differ slightly from the images shown. 2. If you have questions about sizing, please contact customer service for guidance. Package Includes: 1 x Grip Training Device