Improves balance and helps develop rhythm Develops coordination and strengthens muscles Convenient and easy to transport Firm support for baby's spine The Jolly Jumper on a Stand is a baby exerciser port-a-stand that is great for any child in the pre-walking stage. The Jolly Jumper helps your baby improve balance and develop rhythm while strengthening muscles and developing coordination. Firm support for your baby's spine ensures bones will develop properly and posture will remain upright. This product also has convenient portability, making it easy to take anywhere you and your child may need to go.