Wolf on Guard 500-Piece Puzzle European made quality in every Educa Puzzle we make Free puzzle glue included with each 500 to 2000 piece Educa puzzle an Educa exclusive Free lost puzzle piece service, an Educa exclusive, lost a puzzle piece? Educa will replace it for free Our high standard of manufacturing technology ensures an exact fit between puzzle pieces Educa puzzle pieces are made of European made green board which is a thick, super high quality cardboard for many years of puzzling enjoyment