Build-a-Boat comes with 10 colorful pieces that allow you to build a fireboat, tug boat, freighter, oil tanker, fishing boat or the boat of your dreams. The secret lies in the hidden magnetic locking system that makes assembling your vessel a snap. Once you've built your boat, you can launch her in your bathtub, sink or swimming pool. The waterproof hull guarantees a safe voyage and hidden wheels make her easy to push for those who are landlocked. Oversized boat pieces are designed with the youngest builders in mind. Chunky, colorful parts are fun easy to snap together take apart. Ideal for kids ages 3 years up.