A solid sheet of wood is slide into a frame and a ribbon is used to secure it in place by lacing through the frame and sheet several times.  The performer can easily remove the sheet of wood without removing the laced ribbon.  This is true solid through solid and a bit of a brainteaser even when you know how it works.  This will take a couple of minutes practice before performing but is very easy once you know how.

The set includes a single sheet of 3mm birch ply pre-cut, along with full instructions for construction and performance and the ribbon.  Also, included is glue, sandpaper and wax to help with construction.