Let your little one experience different textures and sounds with these buildable books. Four of the pages are made with animal theme print, while the other three are strictly textures and a 2 Giggly Monkey crinkle page. Each set comes with 7 different sensory activities: Crinkle Noise Fuzzy Soft Terry Towel Squeaky Rattle Bumpy Pom Poms Squishy Shredded Foam Each page measures 4" x 4" and comes with a ring to create your own set for the day. One day could be all sound pages, the next could be all different feels. Perfect size to throw in the diaper bag or purse, or the ring allows you to attach to the stroller or carseat. Knowing how important it is when you have children, EVERYTHING is machine washable. Just wash and dry on delicate. All fabrics have been preshrunk.