With 6 different geometric building blocks, and 3 metal balls each with a different face; little ones will love creating the coolest looking acrobatic structures! Create your own acrobatic structures, or try to build the structure on one of the 24 challenge cards which are included. The red base has a metal surface, which gives the needed stability when building the craziest acrobatic structures. In 6 of these challenges only a black silhouette of the structure is given. Can you find the correct shapes to complete the challenge? The information provided here is as complete and accurate as possible; however, product names, colours and/or materials are subject to change without notice.