1. Cast iron + ergonomic design for efficient wrist-forearm training
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High-density cast iron solid bar with weight concentrated at both ends, generating centrifugal force during rotation to strengthen wrist, forearm muscles, and grip. Streamlined handle fits palm curvature with non-slip texture to prevent slipping—ideal for fitness enthusiasts, athletes, or rehabilitation.
2. Universal size + portable design for on-the-go training
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30cm total length, 2-5kg weight (optional specs), operable with one hand. Compact and easy to store in gym bags, suitcases, or desk drawers—train wrist strength anytime, anywhere.
3. Centrifugal training principle + versatile movements
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Targets deep muscles like wrist flexors, extensors, and brachioradialis through rotation, flexion, and circling. Combine with rope curling (wrap weight straps) or grip challenges to break through traditional gripper limitations—enhances muscle endurance and explosiveness.
4. Wear-resistant anti-rust coating + solid structure
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Matte anti-rust paint resists sweat corrosion and scratches. Solid cast iron without welding gaps supports over 50kg tension—eliminates breakage risks for safe intense training.
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5. Versatile for fitness, sports, and rehabilitation
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Ideal for wrist strengthening in basketball/tennis, grip enhancement for climbing/hiking, or rehabilitation from tennis elbow/wrist strain. Available in light (beginners) and heavy (advanced) versions—caters to daily fitness and professional training.
