Wooden Test Tube Rack - Holds 12 Tubes up to 22mm Diameter - Test

Test tube borosilicate glass, 22x220 mm - Laboratory equipment

Test Tube Rack, 9 Inch - 12 Tube Capacity - Wooden, Vietnam

Sample Tube Rack Test Tube Rack, Tube Holder Rack Simple Test Tube Rack Stainless Steel with 8 Holes for Laboratory Lab Supplies Laboratory Tube Rack: : Industrial & Scientific

Test Tube Rack, Wood, Double Row, 22 mm Tubes

QXKE Wooden Test Tube Holder Lab Support Science Educational Wood Stand

Test Tube Rack, 9 Inch - 12 Tube Capacity - Wooden, Vietnam

Slant Rack Acrylic Test Tube Holder Rack 18 Holes Centrifuge Tube Rack for 10-15ml Tubes Clear Suit for Tubes Less Than 1.8cm/0.7inch in Diameter

Wooden Test Tube Rack with 6 Draining Pins - Holds 13 Tubes - Polished — Eisco Labs

Temedon 20pcs Glass Test Tubes, 25×200mm(80ml) Round Bottom Test Tubes – Advanced Mixology