US$ 54.99
and one 1 kg mass with a 0
98-inch outer diameter sit on a needle-supported balance bar
and heart-tube formation for embryology and developmental biology teaching
Black 3-inch circular disc 0
Metal Lever on Magnetic Base Force & Motion_Mechanics and one 1 kg massThirty seven point five cm perforated metal lever on a magnetic base, with holes at 25mm intervals for hanging masses during torque, equilibrium, and lever principle demonstrations.
US$ 54.99
US$ 34.99
US$ 145.00
US$ 180.00
US$ 43.99
US$ 18.99
US$ 18.99