This is the limited edition Matte Black version of the RingTool. Beautifully designed and manufactured in the USA, with the bicycle commuter in mind, it's hard to think of a situation in which you wouldn't want a multitool small enough to add to your keychain. It features hex heads ranging from 4-10mm, a flathead, phillips, and torxhead driver, as well as the often used bottle opener. It's made from hardened stainless steel, and weighs just two ounces — perfect for your minimalist carry. - 3mm Hexhead - 4mm Hexhead - 5mm Hexhead - 6mm Hexhead - 8mm Hexhead - Flathead Driver - Phillips Driver - Torxhead T25 Driver - 0.127" (3.23 mm) Spoke wrench (DT/Wheelsmith nipples) - 0.130" (3.30 mm) Spoke wrench (most European) - Bottle-cap opener Tip to tip measurement? 2" and, it's TSA Approved