Mat for the Resonance Bowl The 7in (180mm) round mat can withstand up to 250C (480F).prevent slipping and allows for larger standing waves by preventing vibrations from transferring to the table.
Pendulum on Stand, Length: 7.1in, Width: 2.4in, Height: 44.1in, Heavy metal stand with a meter scale mounted on a vertical rod can hold 2.5 cm bobs of wood, iron and steel suspended from a common hanger, A meter scale and a sliding index with projecting piece is provided.