Just a washer, but a washer nonetheless... Please take this opportunity to try it out. Thank you for viewing. This is an original bolt/rod washer, brand new and unused, containing 20 pieces. The material is SUS304 stainless steel. While its strength is roughly equivalent to steel, it has excellent corrosion resistance, is highly rust-resistant, and has good mechanical properties. It is cast without burrs, with chamfered inner and outer circumferences. One side has a glossy finish, and the other has a hairline finish, allowing you to optionally select the loosening prevention effect depending on the installation direction. It also supports Sonar-made minus-head bolts/rods and can be used on snares, as well as toms and bass drums. Compared to nylon washers, which are often used by various manufacturers in recent years, it has both hardness and mass, resulting in a sharp, tight, and crisp sound with a sense of speed and directness. If you are dissatisfied with your drum sound, this is a more affordable option than replacing the hoops, and you can definitely feel the difference. Please note that we are unable to offer discounts due to rising prices and increased raw material costs. Thank you for your understanding.