OTTO Fan with Adjustable Feet. When heat builds up indoors during the summer, the slightest breath of wind is welcome. Thanks to the adjustable industrial fan, the air circulation can easily be varied.- Otto is a straightforward chap with height-adjustable feet.- Otto is in tune with nature!- The frame is made of formed wood and oiled twice. Dimensions: 13.5″ L x 14.6″ W x 7.2″ H Weight: 9.77 lbs.