The Bumpy Grip was designed by the same doctors who invented The Pencil Grip. Its sleeker design and bumpy texture make it truly unique but still amongst one of the best hand relief products on the market. A great tool for teaching proper positioning, children love the bright colors and tactile feel. The Bumpy Grip is versatile and can be put on paintbrushes, pens, utensils, and much more! Places fingers in the proper position and improves comfort and control. Details:Assorted colors12 grips per packageFits a wide variety of instrumentsWorks for the left and right-handedRubber