Standard distance spirit level and mounting measuring device, length 300 mm, height 50 mm. Designed for vertical and horizontal adjustment of fittings. Features fixed standard distances at 90, 110, 120, 140, 150, 160, 180, 200, and 220 mm. Includes a clearly readable horizontal and vertical bubble, with depth compensation for quick and accurate measuring. The body is made of aluminum. Ideal for measuring and plumb alignment of all common installation dimensions in construction (3/8" + 1/2").