You will receive 1 spool mounting push rod tool, 1 plastic tapered positioning tube, 4 TR413, 4 TR414 spool, 1 4-way valve tool, 8 spools, 1 T-hook tool, 1 double-head valve removal tool.Durable Materials: The fast replacement tool kit for tire stem core is mainly made of metal materials. It is strong and durable, not easy to deform and can be reused; it is light in weight, small in size, easy to store and carryScope of application: Our tool is suitable for most models with 11.3mm (0.453 inch) rim holes; not for 5/8inch (15.8 mm) valve cores; it is also not for tires equipped with tire pressure monitoring system (TPMS); it is suitable for TR413/TR414 valve trucks, light trucks, small trailers, trolleys, lawn mowers, other tire removals.Main functions: This kit can quickly and efficiently replace, remove and install tire valves; T-hooks can quickly pull out valve cores; conical positioning pipes will provide positioning when installing valve stems; push rods can accurately push the valve core into the rim valve hole; designed for easy installation and quick repair.How to use: 1. Blow the tire; 2. Insert the T-hook into the gap between the hub and the valve core, and rotate the hook to pull out the valve core; 3. Install the valve core on the push rod; 4. Align the conical positioning pipe with the valve hole, and install the valve core through the tapered positioning pipe; 5. Remove the rotary push rod.Valve corecolour: As Shownmaterial: MetalPackage Contents: 1set x valve stem removal tool