The Tele-Tape Measuring Stick provides precise and reliable measurements whether used up or down, diagonally or flat. Simply extend the telescoping stick and read the measurement off an analog viewing window. The built-in measuring tape and the oversized roll-up device are very tough, and can withstand extreme strain. Anodized aluminum rectangular tubes slide between highly durable dust resistant plastic guides. The smallest telescoping section has a small end plate which makes it easier to pull out and, at the same time, serve as a contact surface when measuring. Three sizes are offered with retracted lengths as short as 28" (711 mm), and fully extended lengths as long as 197" (5.00 m).