3D printed Magnetic NORI Feeder roll simply fold a full size piece on nori slide it through the slot in the roll turn the outer housing to secure the nori and attach to the glass. I use strong magnets printed with high quality petg filament that won’t degrade in salt water most prints will have a few days turnaround but I may have certain items instock all the items I print are of a high quality any question feel free to get in touch if I don’t have something in stock that you want get in contact and ill try and accommodate your needs . more colours available thanks! Orange yellow green and pink available