All pieces of all of our Tinker Totter-themed items are mix/match and have universal fits so really the play is endless. These adorable rockets will please space-crazy kids and their eco-minded parents! Everyone loves to stack and connect the chunky components to create colorful robots of all shapes and sizes. The BeginAgain Tinker totter rockets build off our popular Tinker totter robots, making for all kinds of combinations of space adventures. Designed to foster creativity and develop problem-solving skills, This playset stacks and connects to create colorful rockets of all shapes and sizes.