Ring and Ball with Chain. An apparatus for demonstrating thermal expansion, comprising a captive brass ball secured to a mounted brass ring by a chin, Ring mounted on rod with a wooden handle. The ball passes through the ring when cold but will not pass through after being heated. A brass ball secured to a mounted brass ring with a chain. Used in the demonstration of thermal expansions. The ball will pass through the ring when cold but will not pass through after being heated.

We are Manufacturer & Exporter of Ball and Ring Apparatus

For our other Product's kindly visit :- www.ajantalab.com