A vibrant collection of gemstones and crystals, in a kaleidoscopic composition featuring the birthstones by month. A full color informational poster is included! Age 5+ Inside the box: 100 glossy pieces that fit and snap together with ease. 100 piece puzzle when completed is 24 inches x 16 inches. Informational poster is 18 inches x 12 inches. Develops patience, confidence and hand-eye coordination. Sustainably Sourced: Made with recycled board and printed on FSC®-certified paper using vegetable-based inks.