Sizes #1 - #5 The new EZ UP dispenser has a pop-up spring that pushes the cotton pellets to the top with ease. Designed with two different screened grids for easy removal of the desired cotton pellet size. Richmond Dental and Medical Cotton Pellets that are sizes 1 and 2 use the large grid, and cotton pellets that are size 3 to 5 use the small grid. The holder itself is white, and has a sliding top that secures the pellets in place.