Kapro 150-81-48 Aluminum I-Beam Level, 48"Ergonomic hand grips ease repetitive use; V groove base for leveling pipe. Printed ruler scale with inches and millimeters on top surface. Plumbsite window allows user to read vial in both regular and front reading positions simultaneously to eliminate parallax error and enhance vertical vision field. 48" Aluminum Sturdy, red enamel Electronically tested for accuracy Baked with epoxy polyester coat that protects and makes washing down easy With plumb