WINOMO Tyre Valve Core Remover Removal Tool Key 5 Valve Cores for Car Replacement Tire Tyre Valve Stem Core Part Material: plastic, stainless steel. Designed with a seal attached to a movable, spring-loaded pin that allows pressurized air to pass when inflating a tire. Accepts working air pressure up to 300 PSI. Designed for use in any car, truck, motorcycle, bicycle, ATV along with any other vehicle that utilizes tires. Heavy duty valve stem core with a temperature range of -65F (-54C) and 250F (121C).