This Jump With Chris Party Rentals Downey CA, small Castle jumper has a 90 square foot bouncing area. Great for kids ages eight and younger. Make sure to get your little prince his own Castle for his next party. This unit features an inflatable safety ramp at the entrance to protect children as they scramble to get into the bounce area. It also has large netted vent windows all around to keep things cool for the kids while allowing parents to keep an eye on all activities inside.