... 140gsm,170gsm,190gsm,220gsm,260gsm,etcPrinting: silk printing logo,impressing logoPacking: each in a pvc bag, ... green,dark green,light blue,dark blue,yellow,sun gold,black,white,grey,any color is available ... 190gsm,220gsm,260gsm,etc;6.Printing:silk printing logo,impressing logo;7.Packing :each in a pvc bag ... ,one piece in polybag,100pcs in a polybag;8.Usage:cleaning glasses ...