Learn multiplication tables in a fun and exciting way with the Smartivity Multiplication Machine STEM Educational Toy for Kids! You build it and use the set of pivoting links to show the multiplication product of 2 numbers. The multiplication machine toy is a useful study table accessory for kids helping to improve mental multiplication and building skills all while having fun! Build the multiplication machine, spin the number dials and guess the answers before moving the arms to reveal the correct answer. This set includes an engineered wooden sheet; yellow, green, blue, and red pull-out and push-in plugs; bands; assembly hook; detailed instructions; and all other parts to make this cool learning tool.