Early shape learning fits perfectly into place, again and again! Fit the large hollow shapes into their matching slots. Fit the squishy silicone plugs into their matching hollow shapes. Or, fit the plugs right over the shapes sticking out of the base. Each shape in the base has a unique texture design and each plug has a handle to match. It's all the fun of lids and containers but with a unique twist of tactile fascination! Get your little one plugged into learning early with their new best friend Plugzy.