Accidental Rings are designed to slip over levers that need to be flipped in the middle of a piece of music. These rings are great if you have trouble seeing(or remembering) the lever(s) that need(s) engaging throughout a piece. Accidental Rings are larger than the Color Rings so they are easy to slip on and off in between pieces. They even work on levers that already have a blue or red color ring on them. The accidental rings are designed with Loveland levers in mind, but they fit, although a bit looser, on Truitt, Robinson, and Camac levers. Now you can confidently flip on the fly! 10 rings included: 5 white and 5 yellow.