The group number is three packs a total of 90 applicable Category: color inkjet printer paper material specifications: 220gsm (pounds) 4x6in (102 * 152mm) Packing: 30 / bag Product features: waterproof (water is not possible using a general ink smudged) special double-sided printing， glossy front coating， matte coating the back， two completely different effect performance. Paper can be very fine dots on the performance of 5760dpi， the colors more brightly colored， and after printing without additional processing can be waterproof. Ideal for portrait photos， important documents， product certification， advertising finalized ... and so on.