This iset is marked 3+ due to to "advanced building capabilites". There is no choaking hazard and is safe for 1+ years.

SmartMax Build XXL features 70 building pieces and a container that is a sturdy storage unit - and much more! Both the lid and the bottom of the container each offer a unique building grids to help you on your way to building original and colorful structures. Colorful building guides are also included. SmartMax enables young children to explore magnetism safely, with strong, oversized pieces that are specifically designed for handling by young kids.