Review on 📸 Lineco 4 Inches See-Through Archival Polyester Mounting Strips - Acid-Free, Hinge-Less, Sturdy Frames for Photos, Artwork, and Crafts - Pack of 60 by Shantel Griffin

This product met my needs perfectly. I didn't want to use anything that would actually stick to the painting (in this case it was a watercolor painting). did not have sufficiently strong metal clamps on the back to close the space between the passe-partout and the backing board, so the painting would slide off when placed between them and the frame hung. I used two of these strips on the underside of the backing of the rug (just below the rug's window opening) and these strips effectively created a shelf for the image. The result was perfect and very easy to make and knowing that I can take the picture out of the frame without having to "peel" it off the mat helps me sleep at night.