... (500pcs capacity) 1.Material:PP 2.Charateristic:It is a new product, is our own research and development, design, production of ... have advantage of environmental protection, good elasticity, wear resistance, strong anti-penetration, etc. It is more efficient and clean with high ... improved compared to the common one. When using, how long is the shoe, how long it can be pulled. well-fitting, comfortable, ...