Cobble Hill puzzle glue is used to fix and preserve completed puzzles. The bottle contains 177 ml of adhesive and features a spatula attached to the lid, which allows for clean and even spreading on the puzzle surface. When applied, the emulsion is visibly white, making it easier to precisely check the covered areas. After curing, the glue dries completely clear with a glossy finish. This gives the finished puzzle stability for subsequent display or framing.