Makedo Cardboard Construction Tool. 50 XLarge Screws - Add on set.

Makedo is our best selling and most stupendous building tool.

These screws can expand your set to make it work for a big group - or big project.

These little screws, which look similar to a dry wall screw, are used for attaching cardboard together. The attachments are made easily, and with a great deal of versatility. Attach two pieces together in a single place, and you have something that pivots. Attach in two places, and you have a strong and stable attachment. They allow you to build giant cardboard constructions without needing a giant cardboard box. Think: forts, aeroplanes, houses with garden boxes and shutters. When they are in use, it can become a big project. When you are not using them, they fold into a nice little bag.

The materials say 4+ with and adult and 6+ for kids playing together. However my 3 year old would be entertained for hours putting a screw in and out of a box.