Dust covers protect your expensive instruments from exposure to dust particles, which protects your investment in equipment and helps to lower maintenance expense. The dust covers are made from high quality non-woven fabric that will not crack or tear and machine washable. The fabric is made from an eco-friendly material, that is 100% reusable and recyclable. AUTUMN provides dust covers to fit your phoroptor, refractor, keratometer, ophthalmometer, lensometer, projector, radiuscope, slit lamp, fundus camera, NCT, perimeter and ALL other ophthalmic instruments and machines. We make custom dust covers of ANY shape and size. All our products are proudly made in the USA from US materials.