Decorate and educate with these durable, reusable magnetic accents. Add flair to any magnetically receptive surface such as doors, desks, shelving, and bins. 66 total pieces include 1, 1/2, 1/3,1/4, 1/5, 1/6, 1/8, 1/dev40, 1/dev42 and 1/dev46. Largest piece measures approx. 9-1/4" long.