![Gummed Linen Hinging Tape](http://shop.littleislandcrafts.com/cdn/shop/products/8c1acd59d65b5b6dbf459b444c2c26864f29a374_{width}x.jpg?v=1708109863)
From the manufacturer:
This water activated tape, with 65/55 thread count fabric, provides superior strength for hinging, mounting or repair applications. The neutral pH adhesive has high tack, lay flat properties that make it a favorite for hinging mats and heavy pieces of artwork.