Diamond Painting Roller - DP Pen Attachment
These are made out of rubber and to be used to roll over your completed diamond painting section to ensure the diamonds are fully placed down into the canvas glue.
Washi tape may be needed to secure these into place, much like some multiplacers that are available at other locations.
Care should be used when inserting the roller into your pen, use slight pressure if needed only on the metal part of the roller, not the rubber roller itself.
Pen in photo not included. 3 colors available.