Create a 3d card sculpture of an awesome pterodactyl using a unique selflocking riveting system and the patented rivetz gun begin assembling the pterodactyl by folding and fixing together the pre cut pre printed card shapes the plastic rivets are easy to remove so if you make a mistake just take them out and start again the result is a model you will be proud to show off and is especially designed to be hung from a ceiling just one of the collectable rivetz 3d construction activities availa