10 greeting cards with yellow-orange envelopes: Find couples

 <p><b>Greetings cards with colored envelopes; Idea and design: Anke Thomas</b></p> <p>10 folding cards landscape format 10.5 x 21 cm (open 21 x 21 cm)<br> Offset printing 2/0 (Black 6 C + HKS 4) on Circloffset premium white 300 g/m² (100% recycling, the cardboard has the “Blue Angel” environmental seal, the card is not certified)<br> 10 lined envelopes DL, wide flap with wet adhesive<br> yellow-orange paper (color roughly corresponds to HKS 4 K) 100 g/sqm + natural white silk lining<br> the envelopes weigh 8 grams, a card weighs a good 13 grams</p> <p>Greetings cards with memo function: the recipient can first tear apart squares on the front and then start playing!</p>