Additional items ship at no extra charge. High-resolution prints on 300gsm cardstock with a semi-gloss finish. These are paper used to print classic business cards. Size 4" X 6" or 10 X 15 cm ONE-SIDED POSTCARDS. Coated one side. The postcard has the image only front. TWO-SIDED POSTCARDS. If you select 'double-sided', postcards have the image front and back. Size 5" X 7" or 13 X 18 cm BIGS ONE-SIDED CARDS. Coated one side. The postcard has the image only front. BIGS TWO-SIDED CARDS. If you select 'double-sided', postcards have the image front and back. Black plastic frame 10-15 or 13-18 cm. More information can be found by clicking "select material" PRINTING on Roland VersaCAMM inkjets printer. SHIPPING. Finished products are safely packed. Two delivery times. If you have any questions feel free to contact me at any time.