... or imitation leather,reflect meterial,etc. The back is made of real super thin the materials: TPU,PVC,nontoxic PVC EVA ... ,genuine or imitation leather,reflect meterial,etc.The back is made of real super thin fibre cloth,spectacles cloth, ... Korea,imitation suede velvet and many kinds of clean cloth.Application: Be used to clean the screen of the mobile,PDA,camera,computerChip available:125K, EM4102 ...