The Blueberry Pie Batik Treat Strips is a bundle of 40 strips (2.5 inches with full width of fabric) of Tonga Batiks by Timeless Treasures Fabrics. All batiks are hand dyed. The colors vary even within a bolt of fabric. Because of the nature of the hand-dying process, batiks often bleed or run. Therefore, if you may wash your completed project, we recommend you pre-wash batiks, preferably with something that helps fix" or lock in the colors. Commercial treatments are available. Many people use white vinegar. Similar to a jelly roll or bali pop.