Metal Insert Tool – Polymer – Double Locking Lunch Boxes
- This metal tool is for use with our Double Locking Polymer Lunchboxes
- Specially made to perfectly fit the lids for the lunchboxes so that they maintain their shape during the heating process
- Put this tool inside the lunchbox lid when heating in oven or heat press
- Be aware that item will become very hot during the mug printing process so please handle carefully with heat resistant gloves
