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Test Tube Rack, Centrifuge Tube Holder (2 Pack - Blue) for 10ml, 15ml, 50ml, Detachable Plastic Stand, 28 Well: Amazon.com: Industrial & Scientific
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Lily's Home Bamboo Test Tube Vial Shot Glasses Holder Rack, Great as Pen Stand, Made from Bamboo with Built-in Handle, Rack Only, Glass Tubes NOT Included, 6 Tube Capacity (7/8" (22mm') Holes):
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