Nested climbing training stools (set of 4)

Nested Climbing Stools consist of set of four stools which nest for storage. Tops are covered with corrugated rubber tread. Stools measure: 10" wide x 12" long x 2" high, 12" wide x 14" long x 4" high, 14" wide x 18" long x 6" high, 16" wide x 20" long x 8" high.