Demonstrates that for every action there is an equal and opposite reaction. Left and drop one ball to see one ball pop out from the other side. Lift two balls and two pop out. Leave this popular "

Demonstrates that for every action there is an equal and opposite reaction. Left and drop one ball to see one ball pop out from the other side. Lift two balls and two pop out. Leave this popular "

Shows the typical components of this kind of flower. Petals and stigma are removable, one anther is sectioned to show the pollens. On stand with base.Outer packing:16pcs/ctnSize (cm): 36*36*55

A lever type balance, with two equal arms and two pans, attached with a sliding weight.

A lever type balance, with two equal arms and two pans, attached with a sliding weight.

The left half of the model shows the constitution of a Shanghai white boar and 55 acupuncture points often in used on the head, neck, buttock, tail and limbs. The right half shows the superficial laye

Size: 1000ml, 500ml, 250ml, 100ml, 50ml

Size: 1000ml, 500ml, 250ml, 100ml, 50ml

Packing:10pcs/ctnSize: 58*36*40cm