384541 iwako colorz cows puzzle eraser Each box contains 5 erasers- this is for 1 boxes - $3.50. Each color is a puzzle piece. Every erasers can be taken apart and put together. Bcmini is the official us distributor of iwako puzzle erasers! Eco-friendly practical erasers are perfect for collectors. These high quality puzzle erasers are made in japan and put together by hand. Start your collection today!