Professional for chemical laboratories, good materials, fine workmanship, making chemical experiments more perfect. Mostly used laboratory instrument used for analytical chemistry and other chemistry experiment. and , Reusable, hand washable in warm water. Lightweight design, transparent appearance, and easy to observe. It will meet your needs. Features - ColorTransparent - Material: Plastic. - Size: 8.00X6.50X6.50cm/ 3.14X2.55X2.55inch. - Selected material, which can be safely and durably used for a long time. - Professionally used in chemical laboratories, with fine workmanship, making experiments more perfect. - Laboratory instruments mainly used for analytical chemistry and other chemical experiments. - Lightweight design, transparent appearance, and easy to observe. It will meet your needs. - Designed to help you -package and avoid leakage, it will be your good tool choice. Package list: 15 x Funnels