Pinit LARGE Postcard Sleeve. 4-1/2 x 6-1/4". 1.5 mil POLYPROPYLENE. No flap. SKU: SPPPCL Price: $14.97Unit Price: $0.1497 100 - Price: $14.97 500 - Price: $39.70 1000 - Price: $55.60 5000 - Price: $195.50 DETAILS LARGE Postcard Sleeve 4-1/2 x 6-1/4" 1.5 mil POLYPROPYLENE No flap. Image shows clear sleeves in packing bag. DETAILS Back DETAILSLARGE Postcard Sleeve 4-1/2 x 6-1/4" 1.5 mil POLYPROPYLENE No flap.Image shows clear sleeves in packing bag.