... 3, EN14960 standard 4, Fast delivery Water VolleyballModel: AQ3535This water volleyball is very popular, only 40kgs, easy to move and install. 1 ... PVC Tarpaulin, which has 3 layers, two coated side with a strong net inside. 2. PROFESSIONAL MACHINE AOQI has 17 years experience ... zipper joints, and above the zipper, there is a zipper cover by velcro material which is help to disperse the zipper's stress ...