The WEDGiTS™ Deluxe set includes thirty-five pieces of building blocks using square, rhombus style components that stack into pyramids and nest completely together as one, large diamond. Additionally, this Deluxe set has two expansion bars for creating tall structures and for learning about balance in design. Kids can create hundreds and hundreds of their own designs from their WEDGiTS™ set, or they can build designs from the images found in the enclosed product design guide. The design guide shows ideas of different designs for kids to build. The term “wedgits” came from the toy’s symmetrical design that allows the blocks to actually wedge together using pure friction.