Karter Scientific 208U2 Plastic Test Tube Rack for 15/17 mm Tubes, Holds 50, Detachable
Globe Scientific 457200 Stainless Steel "Z" Shape Tube Rack, 16/17mm Tubes, 25-Place
Test Tube Rack, Teenitor 50 Hole Detachable Plastic Test Tube Rack for 13mm& 16mm Test Tubes, 2 Pack, Light Blue
Mkono Wall Hanging Test Tube Planter Modern Flower Bud Vase with Wood Stand Tabletop Glass Terrarium for Propagating Hydroponics Plants, Home Office Decoration
Laboratory Grade Metalware Set - Support Stand (8" x 5"), 12mm Dia. Rod (24" L), Cork Lined Burette Clamp with Boss Head and Retort Ring (2.5" Dia)
Unique Bargains Lab Orange Plastic 28 Sockets 17mm Hole Dia Test Tube Rack Holder Stand
Unique Bargains Blue Plastic 28 Holes Detachable Rack Holder Support for 16-29mm Test Tubes
Unique Bargains Plastic Rectangular 50 Positions Laboratory Test Tube Holder Stand Blue
Brief Description of a Test tube holder, Test tube clamp, and Test tube rack. Thorough description of how to properly heat a test tube using a test tube holder.
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