COMPLETE SET: This coffee machine replacement set includes 17 high quality o rings that are specifically designed for Breville 9 BES900/920/980/990 Series Coffee Machine. PRECISE FITTING: Guaranteed to fit perfectly, these coffee machine piston seal provide an airtight seal for the steam and soft connection tube, prevent leaks and ensuring optimal performance. DURABLE MATERIAL: these rings are made of high quality rubber material, safety, durable and long. EASY REPLACEMENT: These coffee machine replacement o rings Designed for easy replacement, can be installed in minutes, without any special tools or skills required. EXTENDS MACHINE LIFE: By replacing the worn out o rings with these new ones, you can extend the life of your coffee machine and enjoy delicious coffee for years to come. ASIN B0CNVLZWT4 Color Blue, Red Set Name 17 Pack Pcs Set O-Rings Seal Kit Fit for Breville Espresso Machines BES900 BES920 BES980 BES990 Brand Name MAYMII·HOME Unit Count 17 Count Part Number f11d00ee-c48f-4977-ba08-d530834f3740 Manufacturer MAYMII·HOME Item Diameter 0.5 centimeters Material Type Rubber Number of Items 17 Number of Pieces 17 Temperature Range 8E+1 °C Nominal Inside Diameter 0.5 centimeters Nominal Outside Diameter 0.5 centimeters