1.material: black magic tape , neoprene+FRPS , iron fillings 2.weight :0.35kg; long:6.5'' ;wide:4.5'' 3.textile logo label 1.wrist sandbag , ankle weight ,fitness weights , Boxing gloves2.terial: black magic tape , neoprene+FRPS , iron fillings 3.packing: 1pairs/inner color box then 10 pairs/brown cardboard4.for the weight , the regullar one is 0.5-1-1.5-2kgs....per your need5.advantage : rather ...