This add on is to be purchased with your foam inserts. If you purchased multiple inserts, especially with cutouts, and you want the 2 layers glued together. We use our industrial spray adhesive to attach the pieces together for longevity of the inserts and to keep their shape.
This option is only available if you purchased at least 2 pieces as we need to glue them together. Not offered if only a one piece cutout was purchased.
Contact us with any questions.