■ Upgrade Protection group - slip cushion protective cover + lens + metal ring slip off the elastic band ■ lightweight， shiny and transparent， but also by a host of high texture ■ internal ■ design cushioning particles reduced pressure to upgrade the bilateral side-slip design ■ Lens eyelet can reduce friction and scratching the lens ■ New security Accessories - convenience and safety of hand-held anti-off auxiliary elastic band adds to the handheld ■ when ■ flexible design， easy to use， comfortable ■ auxiliary lens ring elastic band and color are random shipments