8 holes Clear Test Tube Rack Holder Acrylic Centrifuge Tubes Rack Lab

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2Pcs Acrylic Test Tube Holder Rack 6 Wells for 10ml Centrifuge Tubes Clear

Acrylic Test Tube Holder Rack 2x6 Wells for 10ml Centrifuge Tubes Clear

Test Tube Holder Acrylic Lab Stand 18-Well 17mm Clear 10ml Centrifuge Rack

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Acrylic Clear Test Tube 12 Sockets Centrifuge Tube Rack Holder for 10ML Test ...