Specifications: Material: metal Product weight: 9g Colour: Silver [Total length] 3.7cm (1+0.3+2.4) 2/90 3/90 (for decorative open wire, decoration of thick material). 4/90 (elastic fabric) Usage: can make a crinkled effect when using the crinkle stitch presser foot Combined with double twin needles, fine creases and 3D pleats can be made on fine fabric. 1. Install the double twin needle and thread by hand. by hand. Draw the base line on the cloth with felt-tip pen, then align the base line with the centre of the presser foot, sewing a fine pleat. fold. You can easily sew pleats arranged more evenly, simply hook the pleats into the presser foot groove; 4. For best results, sew at low speed. Note: Please allow 1-3 cm difference due to manual measurement. Due to differences in display and light, the picture may not reflect the actual colour of the item. Thank you for your understanding. Includes: 3* double double needles 1* crinkled sewing presser foot