Multi Function Complete Tools: The kit includes a bike master link pliers, a bike wear indicator chain checker, a chain breaker splitter tool, and 3 pairs of missing link connectors for 6/7/8/9/10 speed chains. Bike Link Pliers: This tool serves as a master link remover and connector, compatible with all chains and connectors. The anti-slip handles and integrated spring provide better control and ease of use. Bike Chain Breaker Splitter with Chain Hook: Designed to remove and install pins for replacing worn chains. Includes an iron hook to securely hold the chain in place during use. Bike Chain Checker: Allows for quick assessment of chain wear. If the 0.75 or 1.0 mark fits fully into the chain links, the chain is worn and should be replaced. Bicycle Missing Link Connectors: These connectors are ideal for temporary repairs or replacement of a broken chain while on the trail or road. Reusable and easy to install or remove. Type: Multifunction Tools Bike Chain Wear Indicator: Repair Tool Cycling Bicycle Accessories: Chain Checker Kit Bike Chain Wear Indicators: Chain Wear Indicator Tools Chain Checker Kits: Gauge Checker Color: Black Material: Stainless Steel + ABS Size: 16.8 x 6 x 2 cm Package Contents: 1 x Pliers 1 x Chain Cutter 1 x Chain Checker 6 x Connectors Note: The color may vary slightly due to lighting and monitor display differences. Measurement error allowed is +/- 1-3 cm.