Magnesium Powder Anti-skid For Weight Lifting / Training 1Pc Portable Description Description: 100% Brand New and High quality. Magnesium carbonate block chalk will keep your hands dry and sweat-free. Gym chalk block for absorbing moisture and improving grip. Keep your hands moisture free with gym chalk block for non slip strong grips for gym sessions. Apply an appropriate amount to your hands, feet, or instruments before exercise to replenish powder. Specification: Material:Magnesium Carbonate. Size:8.5*8.5*4.2cm/3.35in*3.35in*1.65in. Color:White. Quantity:1pc