Our Mod Blox Long Leg Kit comes with an adjustable two-part leg assembly. The outer Leg is made out of 2.5″ x 2.5″ x 0.1875 Wall Tube. The inner Leg is made out of 2″ x 2″ x 10ga Wall Tube. Self-Leveling feet option height range of 35-44 inches. Caster option height range: 39-48 inches. Kit is sold “per leg” and special attention is required when ordering as our 10″-wide Mox Blox can mount two legs whereas our 20″-wide Mod Blox can mount up to four legs.