Product Name: Copper Washer<br> Total Size: 12 x 18 x 1.5mm/0.5" x 0.7" x 0.06"(Inner Dia * OD * T)<br> Material: Copper<br> Color: Copper Tone<br> Net Weight: 33g<br> Essential for Automotive and Small Engine Repairs.<br> Washers made from copper are often used within piping, electronics, household products, and bio 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.<br> Copper Provides a Tighter Seal and Greater Heat Endurance than Steel and Rubber Washers.<br> These obviously have industrial uses, but we also sell them to weavers, artisans who make wall hangings, a lady who uses them to accent macrame hanging baskets etc.<br> Package Contents:<br> 20 x Copper Washers<br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.