Fangrui Product Details Secure Window Screens: Ensure Your Window Screens Stay In Place With Our Corner Mount Flat Springs. Designed To Prevent Screens From Falling And Reduce Vibrations, These Springs Are A Cost-effective Solution To Enhance Window Stability Without Needing Replacements. High-quality Durability: Crafted From Premium Stainless Steel, Our Window Screen Springs Offer Exceptional Flexibility And Durability. Resistant To Weathering And Corrosion, These Clips Maintain Their Elasticity And Shape Over Time, Ensuring Long-lasting Performance. Universal Fit: Measuring 1/4inch In Width And 2-3/4inch In Length, Our Tension Springs Are Compatible With 3/8 Inch Or 7/16 Inch Thick Window Frames. Suitable For Various Screen Types Including Mitered, Straight-cut, And Extruded Frames. Please Verify Your Frame Size Before Purchase. Effortless Installation: Installing These Window Screen Holder Clips Is A Breeze. No Additional Tools Are Required. Simply Remove Your Old Clips And Attach The New Ones To Your Window Screen Frame For