Rubbermaid Handy Bike Repair Kit Portable Bicycle Repair Tool with Chain Breaker/Hex Keys/Flat Head/Philips Screwdriver/Torx T-25 Multifunction All in One Bike Tool Portable bike tool kit -- Foldable Size: 3.1x1.7x0.8inch(8x4.5x2cm ) Weight:0.4pounds(180g) All-inclusive multifunction bicycle tool-- With Chain tool/ Allen keys(2, 2.5, 3, 4, 5, 6, 8mm) Flat Head Screwdriver/Philips Screwdriver/Torx T-25 MTB tools Solidly made, very durable and sturdy. Compact small size handy to use and doesn't take up much space in MTB seat bag. An essential tool for bicyclists break down on the trail.