Stanley Classic 150cm box level built levelling across wide spans in structural, framing, and installation tasks. The extruded aluminium box construction with soft end caps offers durability, whilst the block magnified centre and large tubular side vials provide clear, accurate readings. Ergonomic shape for comfort. Non-magnetic base for clean, reliable contact. Accuracy is rated at 0.5mm/m. Extruded Aluminium Body Non-Magnetic Base 1 x 90° & 1 x 180° Vials 150cm For Extended Reach Block Magnified Centre Vial Shock-Absorbing End Caps Protect During Transport 90° Side Vial Ergonomic Box Design High 0.5mm/m Accuracy 1 Year Guarantee Extruded Aluminium Body Non-Magnetic Base 1 x 90° & 1 x 180° Vials 150cm For Extended Reach Block Magnified Centre Vial Shock-Absorbing End Caps Protect During Transport 90° Side Vial Ergonomic Box Design High 0.5mm/m Accuracy 1 Year Guarantee