This is a pack of 6 model TR412 straight rubber valves for tubeless tyres that include a chrome sleeve and chrome coloured plastic cap. The TR412 is a snap-in rubber valve in the same shape as a TR12 valve, and is a shorter stemmed version of your standard car tyre valve (the TR13 valve). It is used in many applications such as turf, lawnmower, quad, ATV/UTV, trailer, motorcycle, scooter and some smaller agricultural implement tyres where a longer valve stem would catch on hazards or the wheel rim itself. The chrome sleeve and cap provide a sleek and modern look that fits well with metal and alloy wheel rims. The valve has the appearance of a full metal valve but it is important to note these are still rubber valves beneath the slip on chrome sleeve. Specification:- Rim Hole Diameter: 11.5mm, Max PSI: 65, Valve Size: 33mm, Valve Stem Length: 23mm.