The Hygloss Blank Heart Jigsaw Puzzle is a fun way to create your own personalized puzzle. It is ideal for weddings, showers, birthdays, invitations, and classroom or home activities. Everyone, old and young, will love this 6 x 8 inch puzzle. Decorating these puzzles is so much fun. You can decorate yours and switch with a friend to see if they can solve your puzzle. Make it as challenging or easy as you desire. They are so easy to design with crayons, markers, pencils, rubber stamps, paint and much more! These puzzles are built to last and are made of sturdy cardboard material. Beautiful semi-gloss white on the front and matte white on reverse side. All the puzzles come preassembled so you can get right to decorating. You won't have to put the puzzle together before designing. They won't break off while you design them either. The Hygloss Blank Jigsaw Puzzle is designed and manufactured right here in the USA. Combine fun with a nice challenge when you buy these puzzles! Please note they are NOT for sublimation.