3 in 1 Bicycle Chain Checker Bike Chain Wear Indicator Tool Bicycle Chain Hook Bike Bolt Measurement Tool

Features:
3 in 1 bicycle chain tool, used as bike chain wear indicator, also as chain hook and bolt measurement tool.
304 stainless steel for rust-resistant, depolished surface for skid-resistant.
High hardness for wearable and durable, high precision for accurate indication.
As a chain hook for easy to deal with chain repair problems.
Simple and quick to measure the diameter and length of bolts.
Comes with hook for hanging to tool wall conveniently.