Lens shield is compatible with the Pelton and Crane LF-II operating light. Two-piece lens shield made of high grade Lexan construction. Installation Instructions of Lens Shield: 1. First, turn operating light off. Light can be hot if it has been in use. 2. Locate lock pin on dental light head and push down, so the light head opens. 3. Pinch the lens shield on either side and lift out. 4. When preparing the new lens shield, make sure to remove the protective film on both sides of the shield. 5. When lens shield is ready to be installed, put flat end in first and press sides into place. 6. Repeat step 5 for second part of the lens shield. 7. Lastly, close the light head and reinsert locking pin. Do NOT use alcohol, ammonia, or disinfectants as it will dry out the item and cause cracking. Use mild soap and water.