Hedstrom’s 15-Inch diameter hopper ball plays a fun, musical, alphabet song to help kids learn their letters. Just push the button and kids listen to the fun song while hopping, bouncing, and playing. Ball features entire alphabet and animal graphics. The 2-handle design ensures kids keep a safe and secure grip. We use a durable, super strong vinyl material so the hopper stays inflated and bouncy even when kids hop and bop outside. Hopper ball ships deflated but quickly inflates with any hand pump or electric pump – pump is NOT included. Plus, it’s easy to deflate for travel or storage. Replaceable battery included. To keep kids safe, we independent third-party test our hoppers to ensure compliance with all applicable US, Canadian and EU regulations. Hedstrom Toys contain no banned phthalates, BPA, lead or heavy metals. Hedstrom has been making toys like hopper balls for over 100 years. Look for the Hedstrom name to get quality toys that make kids happy.