Place dime-sized dots of BioColor® close together in a row on the side of a piece of white paper. Scrape dots and drag the colors to form an arc shape. A rainbow will magically appear! Made of durable plastic. Measures 2-1/2"L x 3-1/2"W.

Perfect tool for resist, rainbow and comet art techniques
Use with BioColor®, Colorations® Simply Washable Tempera or other activity paints
Easy to hold and clean
Colors may vary