If you have 6 to 20 colonies of bees this is the answer for you! This extractor will extract 9 medium frames (6 1/4″) or 9 shallow frames (5 3/8″). With the addition of the included set of cages you can tangentially extract 3 brood frames (9 1/8″). Hinged Plexiglas covers are hinged to the top of the extractor, which has a diameter of 21″. The T.I.G. welded 18/10-food grade stainless tank is 24″ tall. Honey gate must be open during extraction.