1)Certificate:CE&PDA, OEM; 2)Made by memory metal, flexible; 3)Any logo, any color; 4)With nickle free coating. More Description:1)Titanium--imported from Japan, good elasticity ;2) Light weight and comfortable wear; 3)Customized logos,design and colour is available;4)Small quantity is available .5)LOGO print avaliable: Silk print on Demo lens, Laser printing on temples. This is a pair of good ...