If you have a child, you can upgrade to a Toddler/Small Kid's Swing Seat for your Rory's Swing Set. Under Advanced Options, the upgrade option is $50 for one seat or $75 for two. The Toddler/Small Kid's Swing Seat is sized for ages 6 months to 5 years old. It is 15 1/2"W x 13"D x 8 1/2"H to top of front safety bar and 9 3/4"H to top of backrest. The safety straps are included.