Bumbo Baby Sitter, Lime Green: Bumbo Baby Sitter is made from a low-density foam material Lightweight and portable The integral outer skin of the material is durable and easy to clean The Bumbo Baby Sitter should only be used on flat, stable ground-level surfaces with adult supervision The Bumbo Play Tray attaches to the Bumbo Baby Sitter and allows your child to keep their toys within arms reach so they can sit up and play. Sturdy play tray keeps your baby in place and keeps toys or snacks from falling to the floor. It also gives parents a break because babies want to stay in the Bumbo Seat longer. Bumbo - Play Tray: Rugged plastic For ages 3-18 months 11 x 13 x 3.5