The canvas is tensioned so young children will experience a spring effect, which they would be too light to feel on ordinary trampolines. The spring-sheet is approximately 5" above the floor. The rubber cover yields protection against the metal frame and the supporting handles are covered with foam to protect face and teeth. Solid construction combines simplicity and function. For children weighing up to approximately 50 lbs. and 2 ft. 4" in height. Ages 15 months to 4 years old.