1.Good air-tightness 2.Durable, Portable design 3.Easy for clean and wear 4.buckles for safe Specifications:1.Size: 51x46cm or Any customized size and shape are welcome.we are a professional OEM factory,we can accept customer design.2.Material:we can offer many kinds of raw material,such as TPU or PVC,and about PVC,we also can offer different standard PVC,such as comply with EN-71,ASTM,3P,6P,Non- ...