Durable plastic with large, easy-to-read metric graduations on one face. Creates a neat line when painting. Protects glass, wallpaper and tiles. Masks 45° and 90° angles and straight edge. Incorporates guide for pipes. Easy to clean. Hanging hole. Durable plastic with large, easy-to-read metric graduations on one face. Creates a neat line when painting. Protects glass, wallpaper and tiles. Masks 45° and 90° angles and straight edge. Incorporates guide for pipes. Easy to clean. Hanging hole.