• carbon steel, aluminum alloy
• Multi tool for bike--sufficient to meet the needs of repair work,Repair Kit for Bike
• Multi-function bike repair tool--sturdy and durable, high hardness, easier for repairing,multi-function bike tool
• Mechanic repair tool--can be given as a present to your family and friend,bike tool kit
• Bike repair tool--can also be used to repair computers, furniture, home appliances and etc,portable tools
• Chain repair kit--a great present for your friend and family,Folding Multi Tool