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BALL and RING APPARATUS
$ 12.65 excl. GST
A Ball and Ring Apparatus that consist of a brass ball, 25mm dia. passes neatly through ring at room temperature. Expansion of the ball when heated prevents this. NOTE: The ball and ring have separate handles.
A Ball and Ring Apparatus that consist of a brass ball, 25mm dia. passes neatly through ring at room temperature. Expansion of the ball when heataed prevents this. NOTE: The ball and ring have separate handles.