Dental Cotton Rolls, non-sterile /100% cotton / 2 bags per box / 2,000 rolls per box/ maintain shape, highly absorbent /no cellulose or rayon fibers / not adhere to mucous membranes. Availability: #1 0.8x3.8cms; #2 1.0x3.8cms; #3 1.2x3.8cms, #4 1.4x3.8cms.