a device for measuring the length of cloth wound on a roll (12) comprises two bodies (1, 2) so as to swivel connected to the pivot point (3) and applied one against the other by a spring (4). mounted on the jaw body (1), an indicator (7) moves on a calibrated scale (10) mounted on the jaw body (2).when in use, press the device on a roll (12) so as to prevent the ends (5) of the shoe body. the indicator (7) moves on the calibrated scale (10), which can read the length of fabric wrapped about the roller.preferably, the ends (5) of the shoe bodies are rounded and smooth, is composed of a plastic material to reduce friction.
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