The KGT-10 "Gyro Tune" drum key (PAT PENDING) is ergonomically designed for comfortable and balanced feel combined with convenience features such as weighted ends for gyro-like spinning action, quick-spin knurled knob, quick release neck strap, and multi-function rubber plugs. The rubber plugs can be removed and replaced with different colors to personalize the look of your Gyro Tune key. Using plugs of contrasting colors makes it easy to keep track of how many times a tension rod was turned. The rubber plugs produce a clearlydefined note when tapped against the head to aid tuning.