Atmospheric Mat with Hook, Measures 10.5 x 10.5 In, durable, thick rubber mat has a simple design that demonstrates a powerful concept - Atmospheric Pressure
Sonometer Wire, 1.3lbs, 9.8x6.7x6.3inch, Set of six wires, brass and steel, length 1.5 m, Set of six wires, brass and steel, length 1.5 m of 22, 24, 26 SWG. Ends looped ready for use.