Natural Wood Finish High Quality Frame for Displaying Conserved (glued) Puzzles.Assembles in minutes!Frame is pre-cut and not adjustable. This frame will only fit a puzzle with exact measurements of 15 Inch x 21 InchIncludes:Frame (4 Pieces)4 Corner Plugs(Attaches Frame Pieces)Metal Wall HangerFrame Requires AssemblyManufacturer: MasterPieces Puzzle Company This high-quality natural wood frame allows you to proudly display your puzzling prowess. Any puzzle measuring 15 x 21 will fit perfectly within the frame. Follow the easy assembly instructions and you"ll have a beautiful keepsake. The frame will hold any MasterPieces 500 piece puzzle, or any other puzzle that has the same measurements. Requires wood glue, not included.