Import Suitable for children: Our eyeglass strap is 21.5 cm long, very elastic and can be stretched to 40 cm. It fits the frames of eyeglass temples that are 8-16 mm wide. It is used for almost all glasses, reading glasses and sunglasses. It is very suitable for children or toddlers, but it also fits adults. If your glasses have thick temples, pull them over the strap. The strap is very flexible. If you find it too tight, stretch it first. Non-slip: ergonomic design, easy to wear eyeglass strap. The eyeglass strap holder can be used together or separately to fix the glasses in a suitable position without slipping or breaking. For children who are just starting to wear glasses, the eyeglass strap will help prevent the glasses from slipping. Soft silicone material: our children's eyeglass strap and ear hook are made of silicone material, which is very elastic, flexible and durable, adjustable, suitable for all-day use, skin-friendly, not easy to break, and very suitable for daily use and sports. Various colors: children's glasses have 12 colors. The choice of multiple colors will attract your boys and girls to wear glasses. It will also be interesting to change to different colors depending on clothes and nice gifts. Wide range of uses: silicone eyeglass strap is suitable for anyone who is tired of constantly pushing up their glasses, especially for indoor and outdoor sports, such as running, basketball, football, riding, skiing, etc.