These polyethylene support stands are excellent for use in severe conditions.  They have no exposed metal parts - all surfaces are polyethylene.  Bases have smooth surfaces for easy cleaning. The rod screws into the base with a deep thread and sturdy tightening knob.  (Weighs 5.5 lbs. for stability.) (Measures 8" x 12" x 2" thick.) (Rods are 1/2" x 30" in length)