Elevate your laboratory experience with the Kimble Chase 45050 19150 KIMAX Test Tubes. This case of 8 plain test tubes is crafted from high-quality borosilicate glass, ensuring durability and resistance to thermal shock. Each tube features a smooth finish for easy handling and precise measurements. Ideal for various applications, from chemical experiments to biological studies, these test tubes offer clarity and reliability. Their standard size fits most test tube racks, making them a convenient addition to any lab setup. Trust Kimble/Kontes for your scientific needs!