How to make easy Pop Up Card for Scrapbook, Big Explosion Box, Greeting Card, Birthday or Valentine s Day I used this 12 x 12 cm Card in this BIG Pop Up Wedding Explosion Box: Explosion BOX measurements: What I use: 220 gsm for the mechanismus and rest 130 gsm black Paper: Paper Pad Motive Nr. 24: Cutter, Skalpell: amzn.