A little surprise every day makes you feel YAY! 24 windows that must be opened as the countdown to Christmas rolls down. White, uncoated 300 g cardboard for an excellent tactile feel. Cards and envelopes come from responsible sources. The printing complies with the Austrian Ecolabel rules. Coloured envelope Packed in an industrially compostable transparent envelope. Designed, printed and assembled in Austria. Blank inner page + small image and an additional heading on the back of the card Size: B6 (12 × 16.9 cm/4.72 inches × 6.65 inches)