FatMax Xtreme magnetic levels are precise and tough and equipped with limpet-like holding power. Super accurate.Solid-block acrylic vials provide the best in class accuracy of 0.5mm/m in eight orientations. Plus every FatMax XL level comes with a lifetime accuracy warranty. Super strong magnets.Rare earth magnets give it twice the magnetic pull of conventional magnetic levels. 5 x stronger than other Stanley levels thanks to its unique reinforced box-beam construction. Light, tough and easy-to-handle.Lightweight aluminium body and sturdy bi-material handgrips make handling easy. Precision engineered.Dual-machined levelling surfaces offer maximum accuracy. Magnified centre vial.Centre vial is 20% larger than standard, making it clearer to read. Shock absorbing end caps protect the level even if it is dropped. 3 vials.Length 1200mm (48 in)