• Made of high-quality hard plastic, shatter-resistant and completely transparent. • Dimensions of each tube: 16 mm in diameter and 150 mm in length. • 25 ml capacity per unit with a round base design. • Includes snap caps that ensure a tight seal to prevent liquid leaks. • Suitable for laboratory use or for organizing beads, candy, needles, samples, and spices. • Package contents: 50 empty test tubes with their respective caps.