Popar brings the world of chemistry to life through its interactive Augmented Reality infused smart mats. This package includes 4 X Periodic Table of Elements smart mats. Each smart mat allows the user to install the included bonus app on 5 different mobile smart devices. If you are a school, please look at our " Educational Packages" that have unlimited user licenses. Connect and play with all the elements through stunning animations, compound building, educational information, game, and so much more. All Popar smart mats are designed with these key features to support and help your child enhance creative perception, learn about spatial and temporal concepts, and build listening comprehension. Measures 19" W x 14" H.