Professional Top End Laboratory Metalware equipment for professional laboratories - No compromise on quality of equipment 1 - Stainless Steel Rod 24" with Tightening Flying Nut for Professional Stability 2 - Heavy Duty 650 Gram / 23 oz Base for Firmness 3 - Pressure Die Cast Clamps with Brass threads and knobs: Cork Lined Burette Clamp; Three Finger Lab Clamp 4 - Pressure Die Cast Boss Heads for Clamps - Heavy handling grade 5 - Retort Ring Precision turned 2.6" Dia The Ring Stand PRO MAX Use it with Bunsen Burner, Distillation Kit, as Test Tube Holder, for Separatory Funnels, for filtration setup