These high-quality matte postcards will display your logo or design perfectly. Design one-of-a-kind cards with your best-selling designs to sell separately or as an addition to a purchase. We've trusted our expert fulfillment partners to ensure the high quality your brand is used to. Start with a single postcard or order as many as you like. Cardboard paper. Paper weight: 7. 67–10. 32 oz/yd² (260–350 g/m²). Size: 4″ × 6″ (101 × 152 mm) . Paper thickness: 0. 013″ (0. 34 mm). Coated outer surface. Blank product materials sourced from Sweden, US, Brazil, or China. This product is made on demand. No minimums. Disclaimers:. Postcards shipped from Europe have a matte outside. Postcards shipped from the US and Australia have a glossy outside. Due to the different coatings on the front and back of the card, identical colors will look slightly different on the respective surfaces. A small QR code is printed on the lower left corner of the back of the postcard. This is intended only for the production team's use. In case of low card stock, we might use comparable paper to fulfill the order. The substitute will be as close to the original as possible.