Universal round watch protector. Protect your possessions from scratches and normal wear-and-tear. With IPG, you get full protection with the worlds most durable materials! HOW TO ORDER: Please measure your watch screen with a ruler. Screen sizes go by the metric system. If your watch screen is 1.10 inches, you can use any smartphone or online converter find the millimeters equivalent. Which is 28 mm. Then you place an order for 1 mm less than actual size. Which is 27 mm. IPG is not a pet film, therefore you can easily apply on domed watches.