The special design of this Ergonomic Tuning Key was developed in an effort to help eliminate any undue stress on your wrist and arm as a result of tuning. The key utilizes the traditional t-shape model for fine tuning while adding an extended shank for increased leverage and support to your wrist and arm during tuning. Plus, a heavy rubber protective coating helps guard against any possible damage to your harp should your key fall when tuning. One of our most popular items, this key is a must-have accessory for all harpists! Pick a special color of your own!