Our Flexible Curve Measuring Tape lets you draw perfectly contoured curves without measuring. The curved tape helps in transferring curved designs from your plans or originals. Simply bend to any curve all the way down to a 1" radius - and it will hold, without any spring-back, and as long as you need it. The measuring tape is made with a lead core completely enclosed in flexible plastic. One side of the tape has a raised edge for drawing a pencil line.