【Automatic Needle Threader】Measuring 6.8*2cm, this needle threader is ideal for the elderly, visually impaired, hand problems, and people who have difficulty using small sewing machine needle threaders. Random color mix includes green, yellow and red. 【Plastic Needle Threaders】These automatic sewing machine needle threaders are made of high-quality plastic and are lightweight, weighing only 5 grams each. It's durable and flexible, passing through most types of needles with ease. 【Easy To Use】Insert the needle into the hole in the lower right corner. Press the button on the side of the needle threader to extend the hook and hook the sewing thread to it. Release the button and pull the needle out so that the thread is above the needle hole. 【Perfect For Hand And Machine Sewing】These automatic needle threaders are perfect for small eye threading needles and are suitable for both hand and machine sewing projects. Our needle stringers help you easily perform many different stringing operations in one project. Only compatible with hand sewing needles in sizes 9-16; sizes 18 and above (fine needles) require specialized tools; sizes 7 and below (thick needles) recommend manual threading.