1.This product is a one-time use only and destroyed after use 2.The range includes covers for most high risk products, instruments and surfaces. 3.The sleeve covers is used on the Dental Ultrasonic Scaler , made of durable waterproof clear plastic material , have the antifouling effect.Keep the chairs clean.Instruments are placed directly on top of the disposable plastic sleeve, reduces the possibility of cross-contamination,saves cleaning time. 4.Following barrier covers are availble: Chair covers, headrest covers, 3 way syringe sleeves, x-ray sensor sleevers, handpiece sleeves, scaler sleeves, turbine sleeves, mouth mirror sleeves, X-ray head cover, light handle sleeves, camera sleeves, curing light sleeves,