This is a flask of conical-shaped, it is easy storage. The body of the container has the numerical scale, can easily read milliliters. The design is simple and elegant, delicately made with workmanship, with good material. Features - ColorTransparent - Material: Plastic - Packing Size: 16.50X10.00X5.00cm/6.48X3.93X1.97in - Manufactured with premium plastic material, with excellent durability and practicality. - This flask is easy to install and dissemble with other experiment equipment, and also can be washed many times, durable to use. - Can be used to making soap, distilling, boiling, concentrate, filter essential oils and plant extracts. - Thickened and tough, high resistance to heat, high chemical resistance in corrosive environments. - Fits for storage of biological and other liquid, solutions for laboratory, chemistry, scientific studies and storage at home. Package list: 6 x 50ml flask 6 x 100ml flask 6 x 500ml flask