Simvey Kids TR90 Flexible Polarized Sunglasses for Baby and Children Age 2-12 Yr Imported Composite frame anti-reflective lens polarized Lens width: 53 millimeters Lens height: 39 millimeters Bridge: 20 millimeters Arm: 114 millimeters TR90 MATERIAL FRAME-It is different from plastic. TR90 frame have Durable ;Unbroken ;Lightweight;Flexible feature .so the price usually is more expensive than ordinary materials.but our price is very preferential. 100% Protection against harmful UVA/UVB rays;Using polarized lens technology, video-resolving power increased dramatically Colorful wayfarer sunglasses design for kids;Suitable for a variety of outdoor activities Package include:1*sunglasses;1*Glasses Pouch;1*Glasses Clean Clothes 100% satisfaction guaranteed. That's our promise. So, if you're not completely happy with your purchase within the first 7 days, just let us know. We'll do whatever it takes to make it right