Package Include: you will receive 1 valve core installation push rod tool, 1 plastic tapered positioning tube, 4pcs TR413, 4pcs TR414 valve cores, 1pcs 4 way valve tool, 8 valve cores, 1 T-hook tool, 1 dual heads valve removal tool, 1 gloves Durable Material: the tire valve stem core quickly replacement tool kit is mainly made of metal and plastic materials, which is sturdy and durable, not easy to deform and can be used repeatedly; Light weight, small size, easy to store and carry Scope of application: our tool works on most models with 11.3mm (0.453 in) rim holes; Not applicable to 5/8 "(15.8mm) valve core; It also does not apply to tires equipped with a tire pressure monitoring system (TPMS); Suitable for TR413/TR414 valve cars, light trucks, small trailers, trolleys, lawn mowers, all-terrain vehicles and other tire disassembly Main Function: this kit allows quick and efficient replacement, removal and installation of tire valves; T-hook can quickly pull out the damaged valve