Ocu-Film + Tip Covers were carefully developed as an integral part of the design specifications for Tono-Pen tonometers to ensure 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 proper performance of your Tono-Pen.FDA cleared 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.Using non-Reichert tip covers could cause damage to your Tono-Pen and void the warranty, necessitating expensive repair costs. In addition, non-Reichert tip covers could potentially cause the Tono-Pen to give erratic readings. Reichert brings you custom made tip covers that provide dependable performance and function with each measurement. It is important to have a consistent thickness at the transducer tip area so that the tip cover does not affect the IOP measurement. Reichert stands by our control of this thickness, unlike some other tip cover brands.Protect your Tono-Pen investment and your patients by only using blue Reichert Ocu-Film + Tip Covers.Features & Benefits: