You receive 1 spool mounting push rod tool, 1 plastic tapered positioning tube, 4 TR413 spools, 4 TR414 spools, 1 4-way valve tool, 8 spools, 1 T-hook tool, and 1 double-head valve removal tool. Materials: This fast replacement tool kit for tire stem cores is primarily made of metal. It is durable, resistant to deformation, reusable, lightweight, compact, and easy to store and carry. Scope of application: This tool is suitable for most wheels with 11.3 mm (0.453 inch) rim holes. It is not compatible with 5/8 inch (15.8 mm) valve cores or tires equipped with a tire pressure monitoring system (TPMS). It is designed for use with TR413/TR414 valves on trucks, light trucks, small trailers, lawn mowers, and other similar tires. Main functions: This kit enables quick and efficient replacement, removal, and installation of tire valves. The T-hook allows rapid extraction of damaged valve cores. The conical positioning tube assists in accurate alignment during new valve stem installation. The push rod ensures precise insertion of the new valve core into the rim valve hole. The design supports easy installation and fast repair. How to use: 1. Deflate the tire. 2. Insert the T-hook between the wheel hub and the valve core, then rotate the hook to remove the valve core. 3. Mount the new valve core onto the push rod. 4. Align the tapered positioning tube with the valve hole and insert the valve core through it. 5. Withdraw the push rod. Color: As shown Material: Metal Package Contents: 1 set x valve stem removal tool Note: Color may vary slightly due to lighting and screen settings. Measurement tolerance is ±1–3 cm.