Compatible Fit: Specifically designed for F40 full face masks, these replacement cushions provide a precise fit, enhancing both comfort and effectiveness of your sleep therapy. Pack of Two: This convenient 2-pack includes two cushions, allowing you to keep a spare on hand for immediate replacement and ensuring uninterrupted therapy sessions. Soft Material: Made from high-quality silicone, these cushions offer a gentle feel against the skin while maintaining an effective seal to minimize air leaks. Easy Replacement: Designed for simple, tool-free installation and removal, enabling quick and hygienic cushion replacement. Reliable Accessory: Regular cushion replacement helps maintain mask performance and therapy effectiveness. These silicone cushions support long-term mask usability. Color: Transparent Material: Silicone Package Contents: 2 silicone cushions (without filter ring) Note: Color appearance may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.