Durable heavy-duty I beam aluminium level 2 fixed vials and 1-180 degree rotating vial topShock absorbing end caps and pipe groove for use on rounded surfacesLength 1300 mmDurable heavy-duty I-Beam aluminium level with 1 x fixed horizontal vial and 1 x 180 rotating vial top easy to read centre vial The horizontal vial can be viewed from both side and above for ease of useShock absorbing end caps and pipe groove for use on rounded surfaces2 vialsAccurate to 15mm1m