Johnson Box-Beam Levels are the toughest, most durable levels to ever grace the construction jobsite. Johnson box level vials are housed in solid blocks of acrylic, making them highly resistant to direct impact. The solid, box level frame construction gives four points of strength, resulting in a level that is nearly impervious to twisting or bending. Innovative features like extra-wide, rubberized hand grips and our GLO-View technology which makes our box beam level vials glow in the dark, make Johnson Box-Beam Levels tougher AND smarter than any other box level on the market.