The blower specification is given in full here: 550W, 0.6 horsepower, 4.2 A at 110 to 120 V, with a 13 ft power cord and a 4-1/4 in outlet - useful when checking whether an existing fan will do the job. The castle measures 11 x 10 x 8 ft and holds three children up to 300 lbs, each under 100 lbs. A climbing wall and basketball hoop join the bouncing area. Oxford cloth with fine stitching resists the pull at the seams. Net weight is 30 lbs with the blower adding 10 lbs.