1. material: The valve core disassembly and installation tool is made of brass, and not easy to rust. The metal knob is non-slip design, and can be used for a long time. 2. Main structure: The base part has a ball value handle, metal cap, core grabbing tool built-in magnet, convenient to use, saving your time and energy, bringing convenience to your life. 3.Easy to install: The core tool makes it easy to insert it into the inner valve, so you can control the core, needn't to stop the machine or release the refrigerant, you can remove and install the valve cores 4.Suitable for: The dual size size 1/4 and 5/16 can be adapted to R22/ R134A/ R410/ R32/ R12/ R12 air-condition, and there is external bypass port design, which can remove the valve cores. Suitable for home refrigeration equipment, dual size( SAE 1/4inch & 5/16inch Port ) design makes the valve core remover installer tool be compatible with R22, R12, R407, R410, R404, R32 A/C air condition system, etc Color: Yellow Material: brass Package Contents: 1 x Valve Core Remover 1 x R410 R32 Brass Adapter 20 x Valve Cores 10 x brass nuts Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.