Professional for chemical laboratories, materials, fine workmanship, making chemical experiments more perfect. Mostly used instrument used for analytical chemistry and other chemistry experiment. and , Reusable, hand washable in warm water. Features - ColorTransparent - Material: Glass. - Size: 10.00X10.00X17.20cm,7.50X7.50X13.00cm,5.00X5.00X9.00cm,4.00X4.00X6.50cm;/3.93X3.93X6.76in,2.95X2.95X5.11in,1.97X1.97X3.54in,1.57X1.57X2.55in; - Constructed with a heavy uniform wall, and a strong, fire polished rim and stem to give a - Funnel has a high resistance to chemical attack, and mechanical and thermal shocks. - Great Visibility: It is clear can actually see the liquid go into the container you are filling - Be useful for transferring essences/extracts for example Frankincense. - Perfect for people who want to transfer small amounts of liquid into tiny bottles. Package list: 4 x glass funnels