The Birzman Damselfly Chain Tool makes breaking and rejoining chains a pleasure. From the ergonomic V shaped handle to the sliding chain support, every aspect of its form is designed to make the job easier. The unique and graceful design originates from the perching pose of damselfly. The Y shape of the handle is more comfortable and easier to use. The aluminium body is only around 40g. Combining the award winning attributes of its full-size older brother the Dragonfly, Birzman\'s design and engineering team has once again used inspiration from their rural surroundings to create a more portable tool. Specification: Compatible with 5-12 speed; 3/32\" and 1/8\" single speed chains.,Material: CNC machined 6061 aluminium (handle) CNC machined 6061 aluminium (body) / S2 tool steel (pin).,Size: 160 x 100 x 22mm.,Weight: 242g..