American Educational Products Checks and Balances 21st Century Balance - Landau Scent: Unscented

American Educational Products Checks and Balances 21st Century Balance - Landau Scent: UnscentedAmerican Educational Products Checks and Balances Single Kit 21st Century Balance is a new version of the classic teaching tool. What makes this unit so special is an internal sliding weight mechanism that allows you to neutralize all factors after the fulcrum and positions of force have been established. Demonstrate levers, momentums, and the principles of mass measurement. This balance is more accurate than previous versions. Measures 20 x 8 x 1 1 2

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