Durable Material: This set of needle threading tools is made of quality plastic_ and metal, durable material, not easy to break, can be used for many years. Good Family Helper: The automatic stringer is designed for threading in low-light or poor visibility. It helps guide the thread comfortably through the eye of the needle. Wide Application: The sewing machine needle threader is suitable for most household multifunctional sewing machines without automatic threading function, while some old sewing machines can also use it. Ergonomic Dimensions: the sewing needle inserters with common dimensions are approx. 7.5 cm/ 2.95 inches in length and 1 cm/ 0.4 inch in diameter, common size, easy and convenient for handling. Dual function: The thread can easily pass through the eye of the needle when threading. When inserted, it holds the needle firmly to prevent it from falling out when changing needles. Sewing Machine Needle Threader Features: Helps fast threading, simple and efficient. Specification: Name: Sewing machine automatic threader Product weight: about 5 grams Product size: length about 7.5cm Product material: ABS Package Included: 1* Sewing Machine Needle Threader