Lux™ STEAM Small Group Set is ideal for groups of up to 12 students. This set includes 300 Lux squares in Royal Blue, Red, and Yellow, 200 trigons in Black and White, 20 each of the two sizes of multi-wheels (which are designed to also function as pulleys and gears), 20 each of our three lengths of axles, and 20 7" rubber bands. This STEAM set will give your students what they need to have in-class design challenges, explore machines, biological structures, chemical structures, mathematical concepts, computer science projects, and test out their engineering ideas. Set also includes a Teacher's Primer and laminated starter guide. Comes in a durable plastic storage unit.