Teach your children to add and subtract with this resourceful rug. Multicolored columns make it easy to follow and discover patterns. High-quality print is manufactured at 625 dpi for crisp, detailed images with excellent definition and clarity. Highly durable design is bound and double-stitched with nylon edge yarn for reliable strength and sturdiness. Antimicrobial treatment helps you maintain a germ-free environment by guarding against odor, mildew and mold. Scotchgard Protector resists heavy soils so you can more effectively clean the rug after spills and accidents.