Specifications: Color: Green/Yellow/Red Suitable for: detect the thickness of the brake pads Size: approx.12.8×2.2cm (5.04×0.87inch)(LxW) Feature: 100% Brand new and high quality. Specifically designed for a tool that can quickly and accurately detect the thickness of the brake pads, reassured owners replace the brake pads and correct. Red ruler: 2, 3 mm, the pads must be replaced. Yellow ruler: 4 mm, 5 mm, 6 mm in dangerous driving process, recommend replacing. Green ruler: 8 mm, 10 mm, 12 mm brake pad is good, is in good working condition. Made of high quality material, durable to use.
