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• Material: PP plastic
• High-tensile steel wires
• Builds your muscle
• Promotes your blood circulation
• Builds up your grip
• Releases your fatigue
• Takes precautions against rheumatoid arthritis
• Width: 11cm
• Height: 12cm
• Pull up Strength: 10 ・ 15kg

Package Details Weight: 177.62 g
Size: 18.5*15*1.5 cm
Package Includes * Spring-grip Dumb-bells