Features 1、This gauge is made of high quality stainless steel, durable and rust-resistant. 2、Easy to use. 3、Simple structure, fine workmanship, convenient to use. 4、Small size and easy to carry, you can simply keep it in your bag. 5、It has high precision, widely used for measuring gap size and slot size. Specification Description: Transistors washer also known as insulation particle, plastic washer. Transistors washers are electronic plastic parts series, mainly used to lock on the transistors, to avoid short circuit between the transistor shell and the radiator. Features: Made of high quality plastic material, these transistor washers have long service life. These washers are characterized by good insulation, light weight, anti-rust, corrosion resistance. Mainly used to lock on the transistors, to avoid short circuit between the transistor shell and the radiator. The main function of transistor washer is thermal insulation: suitable for crystal power tubes, diodes and transistors where heat dissipation and insulation are needed. Each set contains many flat washers that can be used for a long time, so you don't have to run to hardware store looking for washers for quite a while. Specification: Type: TW-3/ TW-6/ TW-9/ TW-10 (Optional) Material: Plastic Weight: Approx.4.5g~12g / 0.2oz~0.4oz Color: White Quantity: 100pcs Package List: 100 * Transistor Washer Note: Please allow slight error due to manual measurement. Thanks for your understanding. Package List