A 740W blower comes with this one, which removes the guesswork of matching a fan to the structure - undersized blowers are the usual reason a bounce house sags in use. The body is 420D oxford with a wear-resistant coating that keeps the slide surface smooth after a season. Inflated it stands 13 x 10 x 8.5 ft, rated for three children at once up to 444 lbs total with each under 100 lbs, ages 3 to 10. Net weight is 39 lbs. Attaching a hose turns the slide wet for summer and it runs dry the rest of the year.