When working: 5 hours Weight: square about 30g / round about 21g / triangle about 28g Size: Square: width 12*height 12*thickness 3cm Round: 10cm in diameter * 3cm in thickness Triangle: width 12*height 10.5*thickness 3cm Capacity: can put key, card, change, paper towel, etc. at the same time Material: sheep skin / nylon webbing / high quality electrophoresis black alloy hardware / YKK zipper Matters needing attention: the first layer of sheep skin is environmentally friendly natural material, leather surface growth, scars, spots, etc. can not be completely avoided, each leather or even a different position of leather, there is a slight difference in compactness and thickness, leather surface Apparent slight pleats are normal. If the product is carefully shot, the outer skin of the product is made of sheep skin embryo. The leather surface is afraid of scratching. Avoid contact with sharp objects during use to avoid scratching the leather surface. Do not touch the acid on the leather surface. If the strong corrosive liquid such as alkali is inadvertently contacted, immediately remove the residual liquid from the leather surface with a paper towel and wipe it repeatedly with a clean damp cloth; the plating surface of the electrophoresis metal is easy to fall off, avoid contact with sharp objects and acid and alkali when using.