"Wavy Box Die Set"
This die is supplied with the u-bolt as shown in the picture. It is designed to be used with the u-bolt installed into the barrel of the extruder. The clay will heal itself as it passes the u-bolt but, use caution while extruding so your die plunger does not contact the u-bolt and damage the die.

This die set is capable of extruding the box body and lid. Use slabs to complete the ends of both pieces. With a little imagination you can build any number of projects; incense storage box and holder, fancy trinket box, pencil box, flower box, other stuff I can’t think of!