ZETA and DRC products are distributed over 50 countries now. They ride dirt bikes. They develop products for dirt bikes. They test, manufacture and supply high quality products for dirt bike riders. Air bleed cup for KYB, SHOWA or WP rear suspensions. Make your rear suspension air bleeding easy. Titanium anodized with DRC laser printed logo on cup body. Can be used with suspension comes with bleeding bolt hole. Sold individually.