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Product Description
Lalco Boss Head Zinc Dial Casting With 360 Degree Rotable With Strong Screws (Model-193) is one of the three things that hold a Florence flask or Conical flask on a retort stand. A Boss head is used to keep the clamp in place so if put a glass holder in between the clamp it doesn't fall/break. it is commonly used in laboratory setups, such as in chemistry or biology experiments, to secure test tubes, flasks, burettes, or other apparatus in place during experimentation.