High Precision - Milled top and bottom surface for maximum stability and accuracy. 180° domed/arc centre vial and two 90° vials with large bubbles Easy Read - Featuring three vials with large bubbles to ensure a clear reading and a no hassle user experience Additional Features - UV and shock-resistant vials, embossed rubber ends for added protection & integrated anti-slip handle with hang holes for convenient storage Draper Quality - With over 100 years experience selling high quality tools Integrated anti-slip handle with hang holes for convenient storage, Manufacturer: Draper