Sold in sets that include a base table and an overhead that has the mail slots.  There are two extra base tables as well.

1, Base Table and Overhead (42" high) Set that measures 30" deep x 48" long ($50)

4, Base Table and Overhead (42" high) Sets that measure 30" deep x 60" long ($50 a set)

1, Freestanding Sorter that measures 30" deep x 48" long x 72" long ($50)

1, Base Table that measures 30" deep x 72" long ($30)

1, Base Table that measures 36" deep x 36" long ($20)