This is the Park Tool IB-2 I-Beam Mini Folding Multi-Tool. Strong, compact, and lightweight, the IB-2 is a great tool for taking on the road or trail. The IB-2 features our unique I-Beam handle with 10 tools: 1.5, 2, 2.5, 3, 4, 5, 6, and 8mm hex wrenches Star-shaped T25 for fittings of disc rotor bolts Flat blade screwdriver The dimensions are nominally 75mm x 40mm x 18mm Approximate weight is 108 grams