Constructed of corrosion-resistant aluminum with heavy-duty 18 lb. cast iron 5 legged base with low center of gravity to ensure stability. Base diameter 21.5#. Accommodates two pumps up to 14 lbs. each and two 3- liter bags of fluid. Friction grip lock makes adjusting easy. Height adjustable from 46.75# to 81# . Four durable ram hooks hold items securely.