The drum throne DW 9100 Air Lift has a round top of 14" and is made with a special foam combination for greater stability and comfort. The 9100 has leg double reinforcement, large tripod  for greater stability and pneumatic height adjustment that you can quickly vary the perfect height only with a touch of your lever. 

About DW
DW is an American brand that has been manufacturing since the 1970s drums high quality hardware. DW is at the technological development and the search there's a constant sound. This search has led him to be one of the iconic brands for drummers around the world because of their drums they have a very characteristic sound.
DW (Drum Workshop) is known worldwide for its innovative designs, quality manufacturing and attention to the desires and needs of technicians drum and the professional drummers. Since its inception you have ta today has never lost its focus on drummers to satisfy the needs of all types of drummers, from beginners to those who make world tours.
Artists the size of Dave Grohl, Terry Bozzio, Virgil Donati or Alfred Berengena among an endless list, use the drums and DW hardware.