3-in-1 Bicycle Chains Gauge Portable Stainless Steel Bike Chain Wear Indicator Caliper Cycling Parts

--Made of stainless steel, the surface is frosted, and the three-stage measurement is used to know the loss of the chain. --Function: chain damage measurement/chain hook/screw measurement --Safe and reliable: It is professionally manufactured, with strict quality control, long service lifeDescription Type Bicycle saddle Material polyurethane Applicable models mountain sports cars size one size Color 189 black red 189 black blue 188 black red 188 black blue Package List 1 seat Note The colors deviation might differ due to different monitor settings Manual measuring please allow 1 3mm errorthank you