Pack with 2 black alloy tubeless Schrader valves, 2 caps, 2 nuts, a valve cap to dissasemble and replace the valve core. In the case of sealant obstructing in the valve core, the core can be replaced with any Schrader valve core. Detachable valve core. Not compatible with UST Tubeless rims. Not compatible with road rims. Recommended product: undoubtedly, the best valve for converted rims. More robust than Presta valves as the valve core can not break. It allows more air to enter and therefore is easier to seat the tire. It can be used with the gas station compressor without adapters. The valve cap with key included can be used for disassembly and as a valve cap.