Name: A tool for removing the crank of a bicycle chainring.Material: 45# carbon steel quenching treatment, stronger hardness.Function: The bicycle chainring is removed, the ejector rod is extended, and the square mouth can be removed.And the spline chain ring and crank, equipped with a wrench, are small in size, easy to carry, and more convenient to use.High-strength puller: high-quality high-strength carbon steel steel to make the thread of the tie rod part is fine and smooth. The material is thick, and the black head cover is high-strength, firm, and wear-resistant.Easy to use: The special tool material for high-strength steel has a certain weight in the hand and can be used for a long time without deformationHigh-quality soft-handle wrap wrench: 3mm thickness wrench soft-handle wrap, can be slipped and hung on the palm. The straight handle can apply pressure better, and there is a 16mm hexagon socket and flat-blade screwdriver on the top, which is more practical and convenientUse tool method: screw the headgear into the crank, remember that the headgear should be screwed to the bottom, don't use the ejector to top it without screwing it to the bottom.Tighten it by hand. When it can’t be screwed, use a 16mm wrench to screw it to the bottom position. This will make the headgear the most difficult, so that it will not be damaged when you use the top crank.Packing contains: 1 piece/setnotes:Due to manual measurement, please allow 1-3mm difference.Because monitors and different lights are different, the picture may not show the actual color of the item. thank you for understandingDue to the difference between different monitors, the picture may not reflect the actual color of the item.