(3 Bx) 3 Refill Trays Oval Pan Watercolors light blue fungi and moldFlexible nubs on and purple 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 Features a chisel tip and is non toxic Semi moist paints with intense pigments for a smooth laydownWatercolor refill tray simply snaps into your existing Oval 8 watercolor setWashable3 refill trays per pack Sold as 3 packs for a total of 9 refill trays