Antiup Quark
$11.99
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ANTIUP QUARK is the antiparticle to the Up Quark. Also part of the Antiquark 6-pack and Antiparticle 14-pack. Approximately 2 oz (57 gm); 3 inches (6 cm) across.For ages 5 and up as it contains glued-on/small parts. CATEGORY: ANTIPARTICLES > ANTI-QUARKS
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