●XCD lab glass short stem powder funnel is common laboratory tool in chemistry, biology, and other scientific disciplines used for transferring powdered or granulated substances from one container to another ●Top Outside Diameter: 150 mm; 24/40 Joint ●Short stem design allows for a precise and controlled transfer of powder, ensuring accurate measurements and to preventing spillage; wide funnel-shaped top for easy pouring of powders ●Made of borosilicate glass; heavy duty, reusable and easy to clean ●In case you receive a defective or damaged item, please reach out to us; we will assist you until the issue is resolved to your satisfaction