FULLY ADJUSTABLE SUPPORTS HOLDS RIGID SUBSTRATES Our Deluxe Art Tree, ATD accommodates up to 32 pieces of art and includes an 11" x 17" vertical frame header. Supports are adjustable up & down the four 80" vertical uprights and includes 25 1/2" square welded steel base with 4 locking casters. Two-tone matte silver and black produce a handsome finish.