Check the listing for details. 102pcs Car R12 & R134a A/C Air Conditioner Schrader Valve Core Remover Tool Kit. Condition: New. Listed at 10.82 USD. Features: Work on service valves cores of booth 1/4 and 5/16 service ports. Suitable for car air-conditioning replacement and maintenance Bear the impact, for R12 R134a,the oil, watertightness and the corrosion. 134A Universal, R12 Universal etc. Specifications: Type: Valve Core Remover Tool Material: Metal Remover Tool: 1/4" 5/16" Quantity: 100pcs Valve Core and 2pcs Remover Tool Placement on Vehicle: Front.Features: Work on service valves cores of booth 1/4 and 5/16 service ports. Suitable for car air-conditioning replacement and maintenance Bear the impact, for R12 R134a,the oil, watertightness and the corrosion. 134A Universal, R12 Universal etc. Specifications: Type: Valve Core Remover Tool Material: Metal Remover Tool: 1/4" 5/16" Quantity: 100pcs Valve Core and 2pcs Remover Tool Placement on Vehicle: Front.