Adults and kids alike LOVE of our Rainbow Pentomino Puzzles, so we figured, why not make them bigger?! These colorful pentomino puzzles are more difficult than they look- they're pretty tricky and perfect for someone looking for a coffee table challenge! And if you just can't figure it out- you can check out solutions on our website. We won't tell! Each acrylic puzzle comes with a 11.5"x11.5" birch wood frame, packaged in a clear plastic sleeve.