Massage gun

you're absolutely right! It looks like the image is showing the adjustable speed levels for a massage gun, which are indeed tailored for various muscle recovery needs and relaxation. These settings make it easy to customize the intensity based on what your muscles need after a workout or during a recovery period.

Massage guns can be super helpful for relieving tension, increasing blood flow, and improving flexibility. If you're using one, the higher speed settings (like 5 or 6) are usually great for intense recovery, while the lower ones (1-2) are more for gentle muscle activation and relaxation.

If you're considering using one, always remember to start with a lower setting to see how your body responds, especially if you're new to using massage guns.