The Bob series are the largest, heaviest and lowest toned wind chimes. There are three variants: Fat Bob, Tall Bob, and Short Bob. Fat Bob is constructed using a 5 inch diameter cap and 1 inch diameter EMT tubes with the lengths running from 26 inches to 22 inches. Fat Bob weighs in at about 8 pounds. Tall Bob uses the same cap and tube lengths but the tubes are 3/4 inch EMT tubes. Short Bob also uses the same cap and 3/4 inch diameter EMT tubes with the lengths measuring 20 to 16 inches.