Nonwoven cloth is premoistened with either 100% pure deionized water or a blend of pure, reagent-grade 70% isopropyl alcohol/30% deionized water. Ideal for wiping optical parts, delicate glassware, electrodes, cuvettes, and microscopes. Very strong, cleanroom-grade, nonwoven cloth is soft and lint-free. Constructed of cellulose and polyester they will not scratch surfaces. Long lasting wipes never fall apart like paper towels. Individually dispensed wipes are handy and ready for instant use. Recloseable, lab benchtop container assures a clean wipe every time and eliminates contamination from dust or dirt. 7 x 7-inch wipes are packaged 100 per polyethylene canister.