1. Handy tool:Quick valve change tool kit, Ideal for leaking valve stems,Change Valve Stem without removing the tire, Solid Steel construction with industrial grade nylon handles. Be proficient enough to replace a tire valve in 15 seconds 2. Product Features:The Tshaped hook can quickly pull out the damaged valve core. The tapered positioning tube provides guidance and positioning when installing a valve core. The metal push rod can accurately push the valve core into the rim valve hole. Our engineers have improved and tested product structure and product materials many times. 3. Package:Tshaped hook, tapered positioning tube, metal push rod, 5 TR413 valve cores, a pair of gloves, instruction manual(There is a usage video on our website link), extra gift, 4Way Valve Toolfour valves cores(Compatible for all vehicle valves as well as air conditioning units). 4. Scope of application:Our tool is suitable for most models with 11.3mm (0.453inch) rim holes. not suitable for 5/8'(15.8mm) valve core. Also not suitable for tires with tire pressure monitoring system (TPMS). Suitable for cars, small trailers, light trucks, lawn mowers, wheelbarrows, ATVs and motorcycles.