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MSBB25
Corrosion-resistant, affordable 1" brass balls for physics experiments.
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From $7.99 /unit
SBALL18
Polished, hardened spheres for mechanics and magnetism experiments.
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From $0.79 /unit
Contact Key, Tapping Key, Telegraph Key, Morse Code Key,
Efficient communication tool for Morse code enthusiasts.
Electric Generator, Hand Cranked With Clear Shell, Educational
Clear shell generator for educational demonstrations, hand-cranked.
Uv Sensitive Beads (Assorted Colors, 150 Beads)
Color-changing beads detect UV light and test UV products.
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