C hook spanner set for dirt bike 8pcs round head1、Function: Designed for use on motorcycle, dirt bike, chiller equipment, and other suspension threaded collars, bearings, packing nuts, slotted retaining rings or locking nuts. 2、Interchangeable Pieces: Wrenches can be interchanged with either a hook or pin jaw, pins have different sizes and thread, so you can switch them around in the hooks for a better fit. 3、Easy to Use: Simply place the adjustable hook or pin in one of the notches and turn the handle to loosen or tighten the nut, to effortlessly make suspension adjustments to your vehicle. 4、Important Parameters: Wrench lengths are 175mm, 200mm, 290mm, spans are 35mm to 60mm, 60mm to 90mm, 90mm to 120mm, package including 3 hook spanners, and 3 pin adaptors. 5、Material: Made of chrome molybdenum steel, high hardness, high strength, not easy to deform, the handle lengthened design, more labor saving, making operation easier, long service life.