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Hooks Law
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* | #808-1 Hook's Law (New
Style)
We are proud to introduce an improved version of our Hook's Law apparatus. This new model comes with a sturdy cast metal base, testing spring, metal scale, four 20 gram weights and combination 20 gram weight hanger/indicator needle. Instructions included. Size is 4" x 4" x 12" (1.5 lbs) |
