Our super-lightweight I-beam spirit levels represent the perfect way to measure straightness with the unique benefits of True Blue® or Polycast® technology. Available in different sizes to suit the varying scales of a busy tradesperson's tasks, you can get True Blue® I-beam levels in sizes of 600mm to 1,980mm or Polycast I-beam levels that are 60cm long. Polycast® I-Beam levels provide plumb, level and 45-degree readings to you by means of three double acrylic vials. Weather-resistant and featuring a handy hang-pole, users will find them very portable, simple to use and practical. Another big draw is its Polycast™ frame, made from a specially formulated foam that retains its original shape and size, despite its flexibility. You'll also find available from us a great range of 500B Series True Blue® I-Beam Levels, with a variety of sizes to suit all manner of tasks. Their frames are built with tough materials to stand the test of time while their impact-resistant endcaps protect frame and vials alike from damage. The precision of the reading is second to none, giving an accuracy of 0.5mm/m in all working conditions. There's also an e-BAND™ vial with high-contrast vial surrounds that make sure that your reading is crystal clear, a signature for TrueBlue® spirit levels. Since our humble beginnings in Milwaukee, Wisconsin in 1919, we have become a household name in measuring tools for the construction industry. Professionals in the USA and Europe alike come back to us time and again because they know that we offer a level of reliability that's hard to find elsewhere. Browse our selection of I beam levels below and upgrade your professional toolkit today.