Well made of premium glass with minimal thermal expansion, giving relatively high resistance to temperature changes. High temperature and , practical tool in your laboratory. Widely used for education, chemistry, research, or applications. Features - Color: Transparent. - Material: Glass. - Size: 16.00X2.00X2.00 cm/6.29X0.79X0.79 inch. - Capacity: 2ml. - Made of premium glass material, excellent and great, useful and reliable for you. - The thickness of the glass is thick, good , transparent, fine workmanship, excellent performance. - When the plunger is rotated, the tiny concave convex engagement between the glass tube and the plunger will produce the grinding and cutting effect. - The biological cells and other harder cell tissues can be easily crushed with the wonderful glass tissue cell . - Widely used for scientific experiments. Suitable for scientific laboratories, classroom learning, etc. Package list: 2 sets x tissue grinders