Genuine Brand Ocu-Film+ tip covers are the only Reichert approved covers for use with Tono-Pen tonometers. Ocu-Film+ tip covers protect your Tono-Pen tonometers from dust and fluids, and help protect patients from the risks of cross contamination. Ocu-Film+ tip covers are 100% hand inspected by trained technicians and then sanitized. They are available in bulk bags or individually packaged in polyvinyl pouches. Ocu-Film+ tip covers were carefully developed as an integral part of the design specifications for Tono-Pen tonometers to ensure maximum measurement accuracy and reliability. Using genuine brand Reichert Ocu-Film+ tip covers guarantees you are using a disposable tip cover that is specifically engineered for maximum performance of your Tono-Pen. FDA approved Reichert Ocu-Film+ tip covers are blue in color to reassure the user that the tip cover is the genuine brand approved for use with Tono-Pen AVIA and Tono-Pen XL applanation tonometers.