Review on 🔧 A-Team Performance Brake Proportioning Valve Bleeder Tool: GM Style Combination Valves Compatible with DISC/DISC and DISC/DRUM PV2 & PV4 AC Delco 172-1353, 172-1371, Black by Shane Jess

This product looks like it's made of metal, but it's actually made of plastic. It worked fine when bleeding the rear drum brakes, but when bleeding the front discs the valve would not stay in place. If it was aluminum I would see it cost that much, but for a small piece of plastic it's probably only about $4. Wouldn't recommend it. Do a little research and find a metal item or find something else that will get the job done. Don't waste your $.