The cylindrical clamp with spring mechanism allows you to adjust the tension of the cord. In addition, it protects the cord from damage and prevents it from getting 'lost' in the drawstring. It is used when sewing backpacks, clothes for sports, recreation, outerwear or children's clothes. Successfully combined with dense elastic cords in textile braiding. The body is made of plastic (polypropylene), withstands washing, sunlight, temperature fluctuations and other standard loads. No special tools are required for installation.
There is a hole with a diameter of 4.5 mm.
The size of the stopper: 19x9 mm.