Innovative concealed mountain bike multi tool that discretely and securely inserts into the opening of a handlebar. It's constructed from lightweight durable machined aluminum and features hardened-steel tool bits. The kit is easily accessible for quick repairs and comes with 11 different tool bits ideal for today's modern bikes. It also doubles as a bar-end plug and comes with three differently sized O-ring fasteners to ensure a secure fit inside most handlebar openings.Large: Hex 2/3/4/5/6/8/10mm Torx T10/T25/T30 Phillips