Metal Magdeburg Hemispheres, Magdeburg hemispheres are closer to the original version than the plastic or rubber models., Each

Details

These heavy-duty Magdeburg hemispheres are closer to the original version than their plastic or rubber counterparts. Thick cast-iron walls and large steel handles make this item extremely durable. A plated-brass valve and precision machining prevent leakage. The hemisphere's diameter, including sealing flanges, is 4.25 inches, while the sphere's diameter alone is 4 inches.