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Fun facts: Berkelium is a synthetic, radioactive metal discovered in Berkeley, California in 1949. It is rare, unstable, and not found anywhere in nature. Great for: Bay Area science buffs and rare personalities. Unleash the spirit of a Berkelium atomic element hat from Lidnium. Crafted from premium washed cotton with precise Bk symbol embroidery and an adjustable fit, this cap lets you stand out—whether you’re celebrating a milestone or powering through your day. Wearing a Lidnium cap adds a little juice to your day, and Berkelium takes it to the next level.
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🇺🇸 Ship from USA · On Agora since 2026
$36.00