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STEM Education
Thames & Kosmos Plasma Ball — 5-inch Glass Sphere, USB-C or Battery Powered
$19.50 Add to cart Buy Now -
STEM Education
Thames & Kosmos Rock Tumbler — Polishing Kit with Samples & USB‑C
$32.50 Add to cart Buy Now -
STEM Education
Thames & Kosmos Rock Tumbler Refill Pack — 1 lb Sample & Grits
$10.00 Add to cart Buy Now












