17pcs gasket for Gastroback Solis Breville Sage BES920 BES900 espresso machine Features: [EASY REPLACEMENT] Designed for easy replacement, these replacement coffee machine O-rings can be installed in minutes without the need for specialised tools or skills. [COMPLETE SET] This coffee machine replacement set contains 17 high-quality O-rings designed specifically for the Series 9 coffee machine. [EXTEND THE LIFE OF YOUR MACHINE] By replacing the worn O-rings with these new ones, you can extend the life of your coffee machine and enjoy delicious coffee for years to come. [PRECISE FIT] This piston seal for coffee machines guarantees a perfect fit and provides an airtight seal for the steam and soft connection hose, preventing leaks and ensuring optimal performance. [DURABLE MATERIAL] These rings are made of high-quality rubber material, safe, durable and long lasting. Specification: Material: Rubber Size: 0.5 cm / 0.20 inch Package Includes: 1 set of coffee maker plunger gasket Notice: Please allow slight error due to manual measurement and different monitors.