It's a 6" multi-piece expandable roll holder, there are 3 pieces that make up the back section of the holder system,
A starting point which has dove tails on the right side of it
A center piece which has both sides of dovetails to allow for interlocking and expanding of the roll system
and an end piece with the appropriate dovetail to close of the row of rolls.
I've also added a back section that doesn't include any dovetails for a cleaner look or for those that have to intention to add more rolls in a single space.
There are 2 models for the front piece, one is a left hand swing and the other is a right hand swing.
This holder is usable just about anywhere you have the space to hang it, whether it be vertically or horizontally and and type of roll that fits with in a 6" space and has room for a roughly 1" dowel through the center can be supported by this holder.
I printed it with a 5% grid infill out of amazon basics petg at 0.2 and have no concerns for the rigidity.
The author marked this model as their own original creation.