Cartesian Diver Only - 4cm Wl1040.

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Cartesian Diver Only - 4 cm WL 1040^ Cartesian Diver Only - 4 cm WL 1040, Ideal for Showing Archimedes Principle, with a hollow glass diver, shaped like a diver, with a 10in x 1 1/2in glass cylinder, a rubber sheet and rubber band, Fill the cylinder with water, drop in the diver it float