Simplastic Unicover - Anti-Static Barrier Sleeve for Protecting Chairs, Lights, and X-Ray Heads. Easily Dispensed from Rolls or from the Simplastic Dispenser. Dimensions: 16.5" x 13.5" x 31" (41.9cm x 34.3cm x 78.7cm). Roll of 650 unicovers. When searching for KEYSTONE Dental products, if you are not able to find the KEYSTONE Dental product you are looking for. Let us know, we will contact KEYSTONE Dental products and bring what you are looking for.