Cruiser - 4 Pc Wood Brain Teaser Puzzle - Size Small -Design By Stewart Coffin Insert the 4 pcs into the large rectangular opening. Looks easy... maybe not! 4 different hardwoods are used. Precision cut 1/4" thick. Base is rugged and attractive, made from floorboard material Available in 2 sizes, this listing is for the size small, approx 5.5" x 3.3"