Reed's Torpedo level has a sturdy plastic frame with magnetic base and working edges precision ground flat to sit flat. V-groove edge allows torpedo level to sit on pipe. Easy-to-read as white frames surround the yellow vials for contrast. Top view window for convenience. Vials read level, plumb, and 45°. Vial indicates pitch at 1/8”, 1/4” or 3/8” per foot without adjustments.