Combination gasket for espresso machines 870/878/880/860/840/810/450/500/Sage 500/810/870/875/878/880. Compatible silica gasket is made of food-grade silica, free of bisphenol A, easy to disassemble and install, and more resistant to high temperature than rubber gasket. It can handle temperatures as low as -65°F (-54°C) to as high as 450°F (230°C). The 54mm silicone ring fits perfectly with the coffee machine. The soft silicone can be easily inserted into the groove to form a secure seal, ensuring no water leakage while minimizing replacement frequency. Color: as shown in photo. Material: Silica. Package Contents: 3 x Silicone Ring. Only the above package content, other items not included. Note: Light reflection and different displays may cause the color of the item to appear slightly different from the real thing. Measurement allowed error is +/- 1-3cm.