Portable hand and forearm exerciser to strengthen grip strength - Durable heavy steel construction built to withstand use with heavy plates during forearm training - Compact and portable wrist roller style device designed for convenient use at home, in the gym, or on the go - Hand grip strength trainer suitable for a wide range of users, from beginners to fitness enthusiasts, helping to make wrists and forearms stronger - Versatile forearm trainer applicable to multiple activities and sports, including weight lifting, climbing, tennis and baseball, and golf - Clear function and performance: strengthens grip, builds forearm power, and improves wrist resilience - Compatibility and practicality: designed to be used with heavy plates to challenge the forearm muscles without compromising durability Use scenarios - Gym routine: integrate the device into sets between lifts to progressively train grip and forearm strength, using heavy plates for added resistance - Sports training: use during warm-up or cooldown to improve racket or bat control for tennis, baseball, climbing grip, or golf grip - Home workouts: quick, focused sessions for beginners to start building wrist and forearm strength with a portable, easy-to-use tool