Measuring tape or tape measure is a flexible form of ruler. On a ribbon of cloth, plastic, fiber glass or metal strip a ruler is marked with linear measurement. Measuring tape is a common measuring tool. It is very flexible that long distances can be measured with it and one can carry it in the pocket. It also gives the ability to measure around the curves and corners. Measuring tapes designed for carpentry or construction often uses a metallic ribbon that can remain stiff and straight when extended.