Eisco PH0374D - Ball and Ring Apparatus Set - Ball Diameter 19mm

An apparatus for demonstrating expansion in metals, comprising a brass ball and a brass ring, each mounted on a rod with an insulated handle.

At room temperature, the metal ball fits through the ring. When the ball is heated, it expands and no longer fits through the ring.

• Ball diameter 19mm
• Eisco type PH0374D