Lezyne Small Insert Kit Multi Tool 54g BlackDoubles as a bar end plug and comes with three differently sized O ring fasteners to ensure a secure fit inside most handlebar openings. Innovative concealed mountain bike multi tool that discretely and securely inserts into the opening of a handlebar. Constructed from lightweight durable machined aluminum and features hardened steel tool bits. Small kit includes 4 5 10mm hex bits T25 and phillips screwdriver bits TECH SPECS Vendor Lezyne Manufacture