Draper-Expert-35886-Petrol-Diesel-Master-Engine-Compression-Test-Kit-37-Pc-Draper-Expert-35886-Expert-Quality-comprehensive-kit-compatible-with-most-motorcycles-cars-light-commercial-vehicles-&-marine-engines-The-large-dual-reading-pressure-gauge-0-600psi-0-40bar-is-fitted-with-a-heavy-duty-rubber-protector-Anti-kink-coil-attached-to-either-end-of-the-flexible-hose-to-increase-durability-Fitted-with-a-spring-loaded-pressure-relief-valve-&-integrated-Schrader-one-way-va