The K'NEX TINKERTOY Classic Retro Building 100PC 15 Model Education Building Toy is a set of interlocking blocks that includes 100 Tinkertoy parts. It was released in 2013 and retired in 2014. The set is designed for children aged 2 and up and features 15 different models that can be built. The packaging comes in a box and the set is part of the Tinkertoy product line by the Tinkertoy brand. It was manufactured in the United States and has a retro building tin theme.