Stick Hold light guide sleeves, fits 7-8 mm light guide, box of 200 sleeves . Easy to apply with stick hold bottom. Made of medical-grade plastic. Does not tear easily. Slips in and out without hassle. These tear-resistant covers are made of clear premium plastic and are available in various sizes. Curing Light Sleeve Covers protect from dust, moisture, and splashes and allow for easy placement and removal.