PRODUCT DESCRIPTION Work easier, faster and smarter with this level. Its tough Structo-Cast® frame is non-conductive and will not scratch fine wood or painted surfaces. The level also comes equipped with durable acrylic vials for easy reading at different angles, and the level is field serviceable. Its Quik-Change™ replaceable vials and vial holders minimize job downtime. FROM THE MANUFACTURER One-piece, injection molded structural-foam plastic frame is virtually indestructible. 360 degree reading acrylic yellow barrel vials. Quik-Change one piece replaceable, high-impact plastic covers. No lenses. Frame dimension: 1-1/4 In. x 2-1/4 In.