DescriptionWell made of premium quality glass with minimal thermal expansion, giving relatively high resistance to temperature changes. High temperature resistant and chemical resistant, practical tool in your laboratory. Widely used for education, chemistry, research, or life science applications.Features- Color: As Shown. - Material: Glass. - Size: 16.00X2.00X2.00cm/6.29X0.79X0.79inch. - Made of premium quality glass material, heavy duty and reusable. - The thickness of the glass is thick, good quality, fine workmanship. - When the plunger is rotated, the tiny and the tiny concave convex engagement between the glass tube and the plunger will produce the grinding and cutting effect. - So that biological cells and other harder cell tissues can be easily crushed. - Widely used for professional scientific experiments. Suitable for scientific laboratories, classroom learning, etc.