This vintage ThinkFun slide puzzle is a classic metal pocket solve game that comes with a red case and free shipping. The puzzle consists of 15 square pieces with a size of 2.25 X 2.25, and it is suitable for players of all ages from 4 to 100 years old. The puzzle's color is red, and it has a strategic theme that challenges the player's mind while providing hours of entertainment. The puzzle was made in the United States and does not carry any warning for California Prop 65. Get your hands on this brain teaser and test your skills today!