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during respiration
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color-coded weights✅Use with a scale or balance to demonstrate mass measurement✅Set of 54 contains 20 each of 1g and 5g weights
Weight: about 90 g
Size: 5x10"
Aepinus Condenser Zoology Model during respirationComprised of three Bakelite and rubber insulated pillars attached to a wooden rectangular base. A nickel plated metal cap with a horizontal hole drilled through the center is provided on each of the two outermost pillars through which two adjustable rods are inserted. The end of each rod has a 4 inch diameter circular plate facing the center and each have an insulated rubber handle at the outer end. These rods are designed to enable hand adjustment
