uxcell 30mm x 40mm x 2mm Sealing Flat PTFE Gasket Washer White Product Name : Flat PTFE Gasket;Type : Flat Material : Polytetrafluoethylene;Inside Diameter : 30mm / 1 3/16"(1.18") Outside Diameter : 40mm / 1 9/16"(1.57");Thickness : 2mm / 5/64"(0.787") Color : White;Net Weight : 2g Package Content : 1 x Flat PTFE Gasket