This innovative drum key will change the way you tune your drums. The patented Fire Fly Drum Key utilizes a German Made unidirectional bearing which allows you exceptional, precise, ratcheting action without the annoying clicking and feel of a standard drum ratchet tuner. The Fire Fly also features a streamline, ergonomic handle for added comfort and knurled ends for lighting fast drumhead changes. CNC machined from stainless steel to be long lasting and durable. The firefly comes with a 5 year guarantee.