These high-quality clear test tubes are made of durable Borosilicate glass 3.3, providing superior chemical resistance and thermal stability. The beaded rim design reinforces the tube opening, allowing safer flame heating and easy handling with clamps or racks.
Supplied in packs of 10, these ungraduated tubes are ideal for heating, reaction observation, and general laboratory work. The smooth inner wall ensures minimal residue retention, suitable for use in research, education, and quality control environments.
Key Features:
Pack size: 10 pcs
Material: Borosilicate glass 3.3
Beaded rim for strength and heat resistance
Transparent and ungraduated design
Excellent chemical and thermal durability
Ideal for sample heating, mixing, and general lab use
