Brush up on your robot building skills whenever, wherever! Build a rolling monster or two different robots, one model at a time -- there are building instructions for all three packed inside your pod! Put it in your pocket and build anywhere! Includes building instructions for all 3 robots! Quick to build and rebuild for hours of fun! Combine them all to make cool combo models! Handy carry case with studs, so you can build it right into your models! Unique assortment of hard to find LEGO elements! Fits into backpacks, pockets and more for on-the-go play!