The L SERIES frame brings a truly unique feature to your sunglasses collection...unbreakable ball joint hinges with no moving parts or screws. TheL SERIES can take ANY beating you may throw at it. If you happen to sit or step on them, the ball joints safely detach and can be easily snapped back into place with no repairs or replacement necessary. The sizing is midway between the K SERIES and M CLASS and fits Small to Medium size faces. Start your Blenders collection here, and it may be the best decision you make all day. Frame: Frosted Gray with Gloss White Details. Material: Polycarbonate Hinge: Ball Hinge - Snap Off Lens: Smoke Polarized UV400 Protection. FDA Approved Impact Resistant. Dimensions: 5.625in (front), 2in (tall), 5.5in (arms) Custom microfiber pouch included.