The Librarian 1000 pc Jigsaw Puzzle by SunsOut - 1000 Piece Jigsaw Puzzle - Completed Size - 20" x 27" - Puzzle Artist - Iris Sage - Interlocking Pieces and Durable Construction - SunsOut jigsaw puzzles feature interlocking pieces that fit securely, making assembly easier and reducing frustration. -Ages - 15 years and older - Perfect for adults and seniors. SunsOut puzzles ensure high manufacturing standards ensuring their commitment to quality and customer service. - SunsOut puzzles use soy based inks, high quality puzzle board. As this is a jigsaw puzzle - assembly is required and batteries are not required.