Test tube stoppers are pushed into the end of the tube. The pictures show just 4 tubes but there is the choice of 4 or 8 and you can also change the quantity which alters the multiples of 4 or 8. due to other conditions.
eBay
10Pcs/Set Blowing Tubes Non-one-time 100mm Long Thick Wall Laboratory Test Tube New Transparent Pyrex Glass School Lab Supplies
Aliexpress UK
Each tube can hold 6ml of liquid. Round bottom and smooth, fire-polished rims.
eBay
20pcs 100*12mm Non-Graduated Plastic Test Tubes with Screw (Blue) Non-Graduated test tube Disposable test tube
Aliexpress UK
5 Pcs 24x200 Glass Test Tube 200mm x 24mm borosilicate chemistry Pack of 5. Product Description These rimless test tubes are ideal for use in microbiology culture applications. Conforms to ISO 4142 High quality test tubes designed and constructed for optimum performance Manufactured from Pyrex® borosilicate glass which gives superior performance to neutral borosilicate and soda-lime glass Allows use at high temperatures - up to 500°C Ideal for microbiology culture work Excellent resistance to chemical attack Approx capacity to rim: 66ml Wall thickness: 1.2mm Dimensions O.D. x length: 24mm x 200mm Quantity: 5
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10Pcs 40 ml Clear Plastic Test Tubes Test Tubes Test Tubes with Screw Caps for Sample Science Party Candy Bath Salts
Aliexpress UK
Each tube can hold 6ml of liquid. Round bottom and smooth, fire-polished rims.
eBay
24 Holes Plastic Test Tube Rack 1.5ml Clear Centrifuge Test Tube Test Tube Holder 11mm Dia School Lab Equipment
Aliexpress UK
5 x Glass Test Tubes. - Are made of special glass tubing to give the optimum wall thickness. 18 mm x 180 mm/0.71 x 7.08". 12 mm x 75 mm/0.47 x 2.95". - Heat, Thermal Shock Resistant and chemically stable.
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5.3x2.1x3.5 Inch Clear Acrylic Test Tube Rack with 6 Holes Test Tube Holder for 10ml Transparent Test Tube Display making kit
Aliexpress UK
Borosilicate glass. Material: Borosilicate glass. -Made of special glass tube to provide the best wall thickness. -Heat resistance, thermal shock resistance and chemical stability. Color: transparent.
eBay
Reliable-15Pcs 110Ml Plastic Test Tube,Clear Flat Test Tubes,Plastic Test Tubes With Screw Caps For Candy,Beans,Party Decor
Aliexpress UK
20mm x 200mm. 25mm x 200mm. -Flat mouth low beaker. -Made of special glass tube to provide the best wall thickness. -Heat resistance, thermal shock resistance and chemical stability. -Borosilicate glass.
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1 Set Laboratory Tube Holder Test Tube Rack Kit Plastic Stand Precipitation Tube Test Tubes 6 Holes Supplies
Aliexpress UK
The Pyrex Glass has low thermal expansion coefficient that is about a third of ordinary glass. Used as the reaction vessel in a small amount of reagent and used in room temperature or heat. 10 x Tubes.
eBay
Plastic Centrifuge Tube Micro Scale 0.2ml 0.5ml 1.5ml 2ml 10ml 15ml 50ml Test Tube lab tube Lab equipment test tube
Aliexpress UK