Fangrui Product Details Complete Frame For : Specifically Designed To Be Compatible With Both And F20 Full-face Masks, Ensuring A Seamless Fit And Optimal Functionality. Enhanced Comfort And Stability: The Frame Is Engineered To Provide A Snug Fit And Secure Seal, Minimizing Mask Slippage And Air Leaks. This Stability Is Crucial For Maintaining Effective Therapy And Ensuring A Restful Sleep Throughout The Night. User-friendly Design For Easy Handling: Featuring A Quick-release Mechanism, This Frame Is Designed For Easy Assembly. The Intuitive Design Facilitates A Hassle-free Connection To The Mask's Elbow Or Headgear, Making It Ideal For Nightly Use. Universal Fit: The Frame Is Crafted To Accommodate All Users Without The Need For Different Sizes. This One-size-fits-all Approach Ensures That The Frame Can Be Used Universally, Simplifying The Process And Enhancing The User Experience. Color: As Shown Material: Abs Package Contents: 1 * Frame Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.