OffBits Jumbo KitCombining familiar parts, cutting edge design and a 21st century approach to collaboration, the OffBits system brings a unique new twist to classic construction toys. The OffBits Jumbo Kit includes more than 250 colorful custom made bolts and nuts and a detailed instructions booklet for creating at least four different out of the box models! It also includes a five in one SuperTool and a unique registration code so you can share your creation with an