The Topeak BB Hide n Tool is a compact and handy chain tool designed for mountain bikers who prefer to travel light. This multi-tool fits neatly into your MTB's bottom bracket, making it easily accessible when needed. The built-in magnets ensure the tool stays securely in place, offering a stealthy solution for those who ride without a bag. Key Features Tools: 7-function full metal folding tool including Allen wrenches (2, 3, 4, 5, 8mm), T25 Torx® wrench, flat head screwdriver, and an aluminium 13-speed chain tool with a steel wire chain hook. Tool Material: Made from durable chrome vanadium steel and aluminium body. BB Tool Body: Constructed from engineering-grade polymer. Compatibility: Fits hollow BB spindles with a minimum 124mm straight section. ID range: Ø18.5 - Ø20mm; Open end ID range: Ø18.5 - Ø25mm. Mount: Designed to fit the bottom bracket spindle. Added Feature: Comes with dust caps included. Size: 13 x 2.5 x 2.5 cm / 5.1" x 1" x 1". Weight: 82 g / 2.89 oz. The Topeak BB Hide n Tool is perfect for cyclists looking for a reliable and discreet multi-tool that doesn't require extra baggage. Its clever design and robust materials make it a must-have for any mountain biking adventure.