Manufactured in Switzerland, this extruded aluminum tram is lightweight yet remains ridged when fully extended. The telescoping design allows for confident one-person operation. Simply extend the tram as much as you need with an instant read of the measurement available at any time. Standard and metric measurements are read easily through a large display window. Take point-to-point measurement from 3 to 10 ½ feet (950-3250 mm). Tape reads in both metric and NCSCI, American National Standard. Measuring accuracy is +- 1.0 mm. No sections to add up or put together. The DF-3 includes 2 bullet pointers, 2 right angle pointers, 2-350 mm pointers, and 2 cones for zeroing out larger openings, and a nylon storage bag.