Air Blower with Hose - 220V, Can be used in the Home, Barn, garage or work shop, This blower is specifically designed for laboratory use. It give constant pressure at low noise levels. Dimensions: Weight (lb)6.0xLength (in)14.0xWidth (in)8.5xHeight (in)8.5
Harmonic Motion Spring, ideal for demonstrations or hands on experiments in the physics classroom, 7 inches (18 cm) long with a maximum diameter of 1.4 inches (3.5 cm) and a spring constant (k) of 9.6 N/m