Feature: The gaskets are made of high-quality copper, good corrosion resistance, better electrical conductivity. 8 different sizes of gasket meet your different needs. It is very simple to use, only need to put gasket into the screw or bolt, will get better fixing effect. Simple structure, and it is easy to use. Widely Application: Perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection. Specification: Material: Copper Shape: O Product size: 6*12*1, 8*14*1, 10*16*1, 12*18*1.5, 14*20*1.5, 16*22*1.5, 18*24*1.5, 20*26*1.5 Package list: 20 * Gasket(6*12*1) 20 * Gasket( 8*14*1) 15 * Gasket(10*16*1) 15 * Gasket( 12*18*1.5) 15 * Gasket(14*20*1.5) 15 * Gasket(16*22*1.5) 10 * Gasket(18*24*1.5) 10 * Gasket(20*26*1.5) Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. 1、The gaskets are made of high-quality copper, good corrosion resistance, better electrical conductivity. 2、8 different sizes of gasket meet your different needs. 3、It is very simple to use, only need to put gasket into the screw or bolt, will get better fixing effect. 4、Simple structure, and it is easy to use. 5、Widely Application: Perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection.