Stanley FatMax Xtreme Box Beam Level 90 cm STA043636 The FatMax Xtreme level has solid-block acrylic vials to provide an accuracy of 0.5mm/m in eight orientations. Plus every FatMax Xtreme level comes with a lifetime accuracy warranty. It is 5 x stronger than other Stanley levels thanks to its unique reinforced box-beam construction.Lightweight aluminium body and sturdy bi-material handgrips make handling easy and the precision engineered, dual-machined levelling surfaces ensure maximum accuracy.The vials are magnified by 20% for improved all round visibility with shock absorbing end caps protect the level even if it"s dropped.Length 900mm (36 in) STA043636