Silicone Seal Ring For Universal Espresso Coffee Machine Accessory Part GS-R002 Features: Seal gasket for espresso coffee machine. It is not the original parts. Made of silicone material quality, non-toxic, flexible and safe e. Exquisite workmanship, perfect assembly. Up Internal diameter: approx. 4.7 cm, Bottom Internal diameter: approx. 4 cm. External diameter: approx. 5.8 cm. Specification: Material: Silicone Color: White Size: Up Internal diameter: 4.7cm / 1.85 inch (appr.) Bottom Internal diameter: approx. 4 cm / 1.57 inch (appr.) External diameter: approx. 5.8 cm / 2.28 inch (appr.) Height: 0.8 cm / 0.37 inch (appr.) Package List: 1 x Seal Ring