- Includes 3 thread cards of 20 meters each in black. white. and gray colors - Specially designed to repair holes. stitches. and meshes in knitwear - 100% polyacrylic material. wear-resistant and easy to handle - Suitable for mending socks. stockings. and all types of strong fabrics - Allow for discreet and durable repairs on clothing and accessories - Efficient solution to extend the lifespan of your favorite garments - Practical for home sewing and textile crafts