This is plastic clip material for retail display of poster advertising. $1CDN per foot. The pix here are of a 40X24 print on Inkjetart Microceramic Lustre. The material is quite rigid. I see no reason why I can't display prints six or eight feet wide with this system. The hanger hooks slide into the extrusion and can be positioned anywhere along the clip.
While this might not be a gallery quality presentation, it's far cheaper and easier than any other alternative I've found. I don't sell prints, I give 'em away to friends, so I'm always trying to keep costs down. This system allows me offer a wall-ready fine art print without the time, hassle and cost associated with conventional behind-glass framing or gallery wrap canvas. The entire assembly can be rolled up and shipped in a conventional mailing tube, ready to hang.
It's a little tricky learning how to insert the print, but after a few tries, I was able to get it to hang ripple-free. I did de-curl the print for a day before this test. The extruded plastic material is re-usable, making it easy to change prints. I did multiple insertions with two weights of canvas and conventional print materials and the retention system didn't suffer at all.
I did trim the unprinted white print borders - about 1/2" each side because I didn't make a borderless print.The sample material I received was 44" long and I didn't bother to cut it to length to match this image so the poster holders extend beyond the print in this test. I haven't tried cutting the clamp material, but it appears easy to cut to length with any saw. The supplier cut this sample to my specified length.
End caps and hooks come with the system and it's also available in white or clear.
My sample was the "KUDACLIP Heavy Duty Poster Holder"
http://www.shelftalkers.com/carttest2.aspx?productline=posterhangersI have no association with this supplier other than the phone call to order the test pieces.