New wipes are certified to be 100% pure cotton of reagent-grade quality and purity. They meet all lab requirements for cleanliness, softness, absorbency, and strength. Cheesecloth Wipes absorb 6 times their own weight of both solvents and aqueous solutions. They never scratch surfaces or fall apart like paper towels. Use them to wipe cuvets and microscopes, clean cameras, and dry delicate glassware, syringes, pipettes, and pH electrodes. Because they are inert to even harsh solvents, they are ideal as a filtering material.