The circular shape and horizontal Converga-Flow drying makes a fast, efficient dehydrator. And best of all-- you don't have to rotate trays or material on trays to achieve fast even drying of food. Make your own natural snacks without additives or preservatives. Expandable to 30 trays, this unit comes with 4 trays (4 sq. ft. of drying area), an adjustable thermostat from 95 to 155 deg. F., 1 Clean-A-Screen (mesh screen for easy removal of dried foods) and 1 fruit leather drying sheet with lip to prevent spill over. Compact size, 9.5 in. H x 15.25 in. W x 15.25 in. D.