With a simple twist to engage with Ninja Master series cage this weatherproof tool box contains a 20 function metal mini tool for basic repair & maintenance. * The chain tool is compatible with single & multi-speed chains up to 12 speed NOT including Campagnolo hollow pin chains.TOOLS2-L / 2.5 / 3 &40;2 pcs&41; / 4 / 5 / 6 / 8 / 10 mm Allen T10 / T25 Torx 2 Phillips / Flat head 14G / 15G / Mavic M7 / Shimano spokes Cr Mo steel chain tool* Stainless steel wire chain hook Super hard anodized tire lever Bottle opener with spoke holder TOOL MATERIALChrome vanadium steel TOOL BODY MATERIALForged aluminum COMPATIBILITYNinja Master cage series Ninja Universal Bracket WEIGHT151 g / 5.31 oz &40; Mini 20 Pro&41; 53 g / 1.87 oz &40; Tool Box&41;ADDED FEATURESecondary chain link fence Chain pin breaker Self-tightening tool