OTR100M Open-Type Fiberglass Long Tape, 100 m, metric (2 mm) increments 5-pack. The 1-sided tape (M series) has meters in centimeter and 2 millimeter increments. Tough, molded handle is easy to grasp. The crank handle is reinforced with metal to provide years of rugged use. Double-throat rollers guide the blade return and prevent the tape from twisting. The shovel handle is ideal for rapid reeling. The tough, molded handle is easy to grasp. The award-winning crank handle is ideal for rapid reeling and reinforced with metal for years of rugged use. Double throat rollers guide the tape return and prevent it from twisting.