With Fixing Top Screws - Equipped with fixing top screws (tightening screws) for fixing and sealing the glass floor. Application - suitable for scientific research, teaching experiments, laboratories of industrial and mining enterprises. 304 stainless steel - made of 304 stainless steel, fine workmanship, smooth and shiny, not easy to rust. Uses: When used for distillation reflux distillation device, the ball mill mouth collection bottle is fixed on the pillar of the iron frame.Exquisite workmanship - Exquisite workmanship, strong clamping force, and the clamped experimental supplies will not fall.Note, because there may be color and size differences between the light effect photos and the actual product, please allow 1-2 cm errorQuantity: (1 piece set) Metal clips (other products not included)Size: As shown (for reference only)Color as shown