The buttons is ideal for measuring the spacing of your buttonholes. This is an essential, classic and basic tool that must absolutely find its place in your sewing box. Increase or reduce the spacing in a single gesture, each buttonhole is equal to each other. and centimeters of the other. Once finished, the gauge folds carefully to be stored easily. Opening from 8 cm to 61 cm (closed 7.7 cm x 15.8 cm). Just 8 buttonholes. Flexible and light.