Big Sensory Seat Cushion Blue Antimicrobial TPE Plastic 5" x 2") and 125 the learning center covers 5" x 2") and 125 photo puzzle pieces (approximately 2" x 2")—and a 4 page booklet with directions Create your own cities and towns with this Happy Architect set fungi and moldFlexible nubs on one side and smaller bumps on the other give a choice for just the right amount of tactile stimulation to calm kidsErgonomic disc causes the body to stabilize itself – improving postureFirmness can be customized with the easy inflation pump (included) to contour exactly to each child's needs13" 33cm diameter is a great fit for a kid's seating while being large enough to grow as the child does Allows children who have trouble sitting still to quietly move while working enabling them to stay on task and be more productiveUnique antimicrobial material offers a proven barrier against multiple dangerous pathogens including E