... , anti-aging/ozone/weather resistance,2. Obturator silicone gasket.So it is good durable,heat-resisting,light,resilient and stretch3. Workable under wide ... preventing air/water/heat leakage.On top of air-tightness,it also functions as shock absorbor,siliencer as well as fastener ... such as transparent,white,black etc2.Any size and desgin is ok3.we could supply FDA,RoHS and SGS certificates on ...