Unbreakable and Flexible Kids Glasses Manufactured to be unbreakable using a Tempo exclusive flexible polymer. These game-change glasses can withstand virtually anything. Designed for children, Tempo Unbreakable series frames are, light weight, ultra-flexible and can bend and twist without the risk of cracking or shattering like traditional kid's eyewear. The Hinge Can Bend and Twist Without Breaking The metal free Omni-Directional hinge can bend, rotate and twist in any direction. This ultra-premium silicon hinge is a major advancement for children's eyeglasses. Capable of withstanding tremendous pressures at any angle without breaking. This groundbreaking design enables Tempo Unbreakable Children's Eyewear to withstand years of use. Detach the Temple Arms to Add a Headband Detachable temple arms and interchangeable headband make these frames the most versatile kids frame available. These glasses can be worn traditionally with temple arms and strap, or by disconnecting the Comfort Temple and Omni-Hinge and replacing them with the included Headband. Wear With or Without Straps Some kids prefer glasses without headstraps. The silicone coated temple tips can be bend to perfectly fit around your child's ear. Ideal for any occasion or personal preference. Some kids need or prefer a Headstrap. The included adjustable headstrap gives your child’s extra security and protection whenever you kid needs it.