VTech’s Move and Crawl Baby Ball, currently priced at $15 with free shipping for Amazon Prime members, is a learning toy that also provides exercise for your little one.

Once the toy is turned on, it rolls around by itself slowly, giving baby the motivation to crawl or walk after it. The ball, which runs on three AA batteries (included), has sound, touch and sight stimuli, and introduces baby to numbers, shapes, colors animal sounds and music. It includes over 40 sing-along songs, phrases and sound effects.

The ball is geared toward children six months to three years, although most parents who’ve bought it say that it’s best for children learning to crawl.

The VTech Move and Crawl Baby Ball is available here.