Bright, visible lasers lines give clear, sharp and very precise reference for all tile and floor/wall covering surfaces. Select 0 degree and 90 degree lines plus optional 45 degree layout line at press of a button. Strong magnets on bottom of tool provide secure and adjustable attachment on positioning plate and other ferrous metal surfaces. Taller than typical floor covering layout lasers to project over uneven surfaces, laser lines are brightly visible over obstructions, textures, and most types of surface.