A Unique Corn postcard Art Design, Standard Postcard Size Ronnie By Design. A Unique Art Design Postcard. Postcards are made from thick high-quality matte paper, so they serve as a great addition to a gift or just a thoughtful written note to a friend. • 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 especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!