Available in two sizes.  The 4 Tray Economy Model offers 4 square feet of drying area and has a 5 year warranty.  The 9 Tray Deluxe Heavy Duty Family size is ideal for large families, large gardens, craftspeople, and sportsmen. It has 9 LARGE trays: 15 square feet of tray area makes this the biggest and best there is!  Comes with 10 year warranty.