Big Jump! Available in 10 and 12ft. sizes, these are giants! Inflation is easy with its single chamber design, and the attachable boarding platform makes it a cinch to climb on board from the water! The included sea-anchor system keeps the trampoline stable as you bounce and lounge on this larger than life inflatable. Big time fun is yours! Large bouncing surface Heavy-gauge PVC bladder Molded handles Inflated Length: 10 foot (300cm) diameter Inflated Height: 30in