Stanley FatMax I-Beam Level 3 Vial 180cm | STA143557 Aluminium body and sturdy bi-material handgrips Solid-block acrylic vials Box-beam construction Stanley FatMax I-Beam Level 3 Vial 180cm | STA143557 The Stanley FatMax Pro level has solid-block acrylic vials to provide an accuracy of 0.5mm/m in eight orientations. In addition, every FatMax Pro level comes with a lifetime accuracy warranty. The level is 5 times stronger than other Stanley levels, thanks to its unique reinforced box-beam construction. The lightweight aluminum body and sturdy bi-material handgrips make handling easy and the precision-engineered, dual-machined leveling surfaces ensure maximum accuracy. The vials are magnified by 20% for improved all-round visibility, and the shock-absorbing end caps protect the level even if it is dropped. Features Bi-material handgrips and rock-solid box-beam construction 20 percent vial magnification for visibility Rubber end caps for protection and durability Dual-machined leveling surfaces for maximum accuracy Accuracy: +/-0.5 mm/m in all eight orientations