Upgrade your bike's valve compatibility with this pack of brass Presta valve adaptors. Compatible with all types of bikes, these adaptors allow you to convert Presta valves to the more common Schrader valve type, making it easier to inflate your tires at gas stations or with standard pumps. The pack includes 4 adaptors and 8 caps to protect the valves when not in use. Constructed from durable brass, these adaptors are built to withstand the rigors of cycling. Simply screw them onto your Presta valves and you're ready to inflate with any Schrader-compatible pump or compressor. A must-have accessory for cyclists who frequently travel or need to top off their tires on the go.