Description This highly practical fitness gear is designed for comprehensive arm training via 360° rotating core spinning motions, and it also works as a versatile dumbbell for a wider range of workouts. It features stepless adjustable resistance, making it perfect for both fitness beginners honing their techniques and seasoned pros pursuing muscle gains. Crafted with triple-layer electroplated steel and double reinforcement bars, it boasts exceptional durability to stand up to intense training sessions, while the anti-slip grip design (paired with 2 rolls of grip tapes) ensures a steady and comfortable hold even during sweaty workouts. Weighing 3.35kg, it targets forearms effectively and can also sculpt shoulder, chest, back muscles as well as boost core strength, flexibility and coordination. With a compact, space-saving design and no assembly required, it’s ultra-portable and suitable for workouts at home, the gym, the office, or even rehabilitation sessions, and its small size allows for easy storage in tight spaces. Additionally, its spinning motions replicate speed boxing movements, enhancing biceps and triceps strength, endurance, precision control, as well as wrist grip strength and joint mobility. Features 360° rotating cores for all-round arm muscle training Dual functionality as an arm trainer and a dumbbell for versatile workout options Stepless adjustable resistance to fit all fitness skill levels Compact, space-saving design for effortless storage and no assembly needed Triple-layer electroplated steel construction for long-lasting durability and double reinforcement bars for added stability Anti-slip grip patterns plus 2 rolls of grip tapes for a secure and comfortable hold during intense workouts Portable design, ideal for home, gym, office use and rehabilitation sessions Spinning motions boost grip strength, wrist joint mobility, and biceps/triceps strength, endurance and precision control All-in-one design targets forearms, shoulders, chest, back and core muscles, improving overall flexibility and coordination Specifications Product Category: Fitness & Body Building (Arm & Forearm Training Equipment) Dimensions: 5.0 cm (H) x 17.0 cm (W) x 37.0 cm (D) Weight: 5.8 kg Colour: Black, Silver Material: Metal, TPR, PA