This SuperHandy 120VAC 60Hz 250Watt Dehydrator Food Preserver features all food grade safe plastic construction, a clear housing to monitor food, a 1-48 Hour Digital Thermostat Timer, pre-heat programmed temperatures, with 5 Interlocking Stack-able Trays measuring 12-1/4” x 9-5/16” x 1-3/16” each for a grand total of 3.5 sq.ft. of drying space & the top rack has 2-1/8” space of drying due to the Lid design, best for thicker vegetables/fruit/meat of your choice!