★ O-rings for De'Longhi Fully Automatic Espresso Machines - Set of 3 - 45mm ★ O-rings for repairing De'Longhi fully automatic espresso machines. Available while supplies last. Please secure these for repairs. ・This is a set of 3 O-rings. ・The size is 45mm, the same as the original. ・The ring thickness is 4mm. ・Made of heat-resistant silicone!! Excellent elasticity and heat resistance. ・The second photo shows an example of how the O-rings are used (the product is only the O-rings). We do not recommend anything other than silicone O-rings, as they are used in high-temperature areas. Please perform regular maintenance/replacement, just like with the original. We also offer 43mm types, considering the load on the machine, so please choose according to your style. Both sizes will not affect coffee extraction. 45mm ⇒ Recommended for those who want the same size as the original and can perform regular maintenance/replacement. 43mm ⇒ Recommended for those who tend to neglect maintenance.