Significant Services Johnson Level Tool 3818 Magnetic Professional Aluminum Level, 18", Black, 1... Brand: Johnson Color: Yellow Item Weight: 12.80 Material: Aluminum, Metal, Acrylic DESCRIPTION Johnson's 3800 I-beam level was designed to be durable and easy to use - so much so that it has been the standard in the industry for over 30 years. Its heavy duty aluminum frame ensures accuracy and is durable enough to withstand even the roughest jobsite abuse, and that frame is protected by shock absorbing end caps if the level is accidentally dropped. The level also comes equipped with replaceable, durable acrylic vials that are impact resistant along with a top read window allowing the user to stand over the work to view the vials. This level's strong magnetic edge provides hands-free use on ferrous metal surfaces. Extruded aluminum I-beam with black anodized finish. Computer machined level edge with strong, full-length magnetic strip. 360 degree reading acrylic yellow barrel vials. Screw-on, high-impact resistant plastic covers with protective lenses. Large, patented, magnified top-read window. Shock-protecting end caps. Frame dimensions: 1 In. x 2-1/4 In. MAGNETIC LEVEL: The leveler features a strong holding magnetic edge that allows hand-free use on the ferrous metal surface for added convenience. QUALITY CONSTRUCTION: The carpenter's level features a heavy-duty aluminum frame that promises to withstand the harsh impacts at the job site; delivering unparalleled performance. ACRYLIC VIALS: The magnetic box level features easy-read replaceable acrylic vials made of impact-resistant material for maximum durability. SMART DESIGN: The aluminum box level has a top-read window that maximizes readability; allowing you to access reading from any angle. USER-FRIENDLY: The 18 in. I-beam level has replaceable cover plates and three vials that make it easy to use and a must-have for most professionals.