Check the listing for details. 8pcs Silicone Rubber Sheet Gaskets 40mm OD 3mm Thick Round Solid Washer, White. Condition: New. Listed at 16.67 USD. What will I get?Color: WhiteMaterial: Silicone Rubber (VMQ)Outer Diameter: 40mm / 1.57 inchThickness: 3mm / 0.12 inchShore Hardness: 50ADielectric Strength: 20-25KV/mmWorking Temperature Range: -30°C to 200°C (-22°F to 392°F)Package Contents: 8 x Spacer GasketsWhat is this?The sealing gasket provides a bearing surface for fastener load distribution or is used as a spacer between components.Are there any advantages of the product?Silicone rubber has good toughness and elasticity, good hydrophobicity, low surface tension, good thermal stability, smooth to touch.With features of shock absorption, sealing, anti-aging, tear-resistant, high and low temperature resistance, insulated, wear resistance, no peculiar smell, acid, and alkali corrosion resistance, etc.