10 Pieces Glasses Strap for Boys, Universal Adjustable Eyeglass Strap with Hooks, Clip, Mask Lanyard, Sunglasses Strap and Sports Glasses Premium Material: Made of eco-friendly, durable and premium elastic rope nylon. Fits most frames, colorful, fun. Design: The 7 colored glasses are specially designed for children - 10 different styles (the color of the glasses strap is random.) Non-slip cartoon buckle design: The plastic glasses holder is decorative. Adjusts the glasses strap to fit the head size to prevent the glasses from slipping. fall. Also used as an adjustable length extension strap for a mask, relieves ear pressure, ear saver. Multifunctional: The glasses strap holds a firm grip on children's glasses or sunglasses, preventing the glasses from being dropped and broken during movement or sports, allowing the child's glasses to be comfortably hung on the chest or rest on top of the head. your child does not need to wear a mask, just take off the mask and use our mask extenders to hang the mask. Occasions: Suitable for many different brands and colors of sunglasses, myopia glasses, reading glasses, prescription glasses, safety glasses, etc. Hanging the mask around the neck allows children to free their hands, play, eat, take a nap without losing the mask.