Turn any surface into a base for building blocks! flexible – bendable – shapeable cut-to-size to fit anywhere! introducing Build Bonanza the building block roll that sticks, bends and flexes onto any surface to create unique landscapes! it's easy! Just peel and apply to any surface, then connect your blocks! Thanks to the Universal peg system, Build Bonanza connects with LEGO blocks, Mega Blocks, karee-o, and more! build around furniture, curve up walls, connect to windows, and even swirl around a ball! now you can build like never before – even upside down! the secret is the flex-peg technology that grabs tight onto any surface, while bending and flexing to take on its shape. No more boring, flat landscapes! think outside the box! build up, under & all around! Build Bonanza is even waterproof, so you can create a city around your sink or tub! Includes: 3ft rolls of Purple, Orange, Black and Light Blue.