QWORK® 20 Pack Borosilicate Glass Test Tubes, mm OD X 150 Length, Round Bottom Tubes

Standard dimensions: 20 mm outer diameter and 150 mm length. Premium borosilicate glass ensures durability and chemical resistance. Withstands temperatures up to 250°C, suitable for various laboratory applications. Round bottom design is ideal for heating and mixing substances. Flared top lip allows for easy pouring and reduces spillage.