4.5" x 5.5" Clear Packing List Back Side Loading Plain Face Envelopes Pouches (1000 Pcs) Color: Front- Clear, Back- White. Load Type: Back Loading/Side Opening. Adhesive: 25 gsm, Synthetic rubber  Hotmelt. Paper Liner: 70 gsm, White. Inside Usable Dimensions: 4 x 5.