Specification Brand : uxcell BulletPoint1 : Product Name : CopperWasher;Total Size : 42 x 50 x 1.5mm/1.65" x 2" x 0.06"(InnerDia*OD*T) BulletPoint2 : Material : Copper BulletPoint3 : Color : Copper Tone BulletPoint4 : Net Weight : 8g BulletPoint5 : Package Content : 1 x Copper Washer ExteriorFinish : Copper ItemName : uxcell 42mm x 50mm x 1.5mm Copper Flat Washer Seal Fitting Fastener Spacer ItemPackageDimensions_Height : 12.1 centimeters ItemPackageDimensions_Length : 0.6 centimeters ItemPackageDimensions_Width : 10.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : mechanical-control-cable-accessories Manufacturer : uxcell Material : Copper MetalType : Copper ModelNumber : US-SA-AJD-81977 NumberOfPieces : 1 PartNumber : a14122500ux0595 ProductDescription : Essential for Automotive and Small Engine Repairs. Washers made from copper are often used within piping, electronics, household products, and biomedical applications as copper is malleable and ductile– a biostatic surface that is a good conductor of heat and, when very pure, a good conductor of electricity. Copper Provides a Tighter Seal and Greater Heat Endurance than Steel and Rubber Washers.