Dragonflies are not the first thing youd associate with bike maintenance. Luckily Birzman think differently to the crowds, their all new Dragonfly Chain Tool features a chain rivet extractor design based on the way Dragonflies wings work. The Result is one of the most elegant & efficient way to fix any 9, 10 or 11 speed chain. A hand friendly T shaped handle offers additional leverage for removing those bonded in, old rivets. This handle also allows a precision amount of force when inserting new links. The reversible chain holder means the Dragonfly is compatible with both standard 9 & 10 speed chains & all new 11 speed chains. Rear Rivet System An interchangeable cradle is designed for 11 speed chains. The gate mechanism breaks the chain & stiff links accurately & quickly after riveting. Special Steel S2 Special-Steel S2 is a super rigid material that guards against wear & tear. Aluminium Construction Strong, light & durable. The perfect material for cycling tools. CNC Machined A precision construction method that ensures durability of metal parts. High Polished Machined A highly smooth surface is created by machine polishing during manufacturing. Forged A construction method that results in extremely strong & durable tools.