Enjoy hours of bouncing fun on the unique and exciting Jr Jumper made especially for little kids! Safer than the average trampoline, it has the same high bounce fun and allows children to reach for the sky. The 4.5' tall colorful steel powder-coated poles provide support while jumpers bounce up and down on the 4' diameter inner tube. The high-density tube means extra high bounces. Foam covering on the top of the frame ensures extra safety for all ages. Perfect for small spaces, it's recommended for use on carpet or grass.