The GoFit GoTape is an ultra convenient, compact way to measure circumference. It's a great fitness tool for tracking your weight loss as well as your gains in muscle mass. Measure around arms, legs, waist etc. Much easier and quicker than with a clumsy loose tape measure. Simply, pull the measuring tape out and around the object to be measured-up to 60 inches (~152cm). Slide the "Keeper" end piece into its slot. The GoFit GoTape retracts with the push of a button, cinching neatly around the object for an accurate measurement. Made of durable plastic, the GoTape is lightweight and compact enough to take anywhere.