Say Good bye to Vibration: The window screen spring clips can hold the screen sliding in aluminum channel stably and securely, prevent the annoying shaking because of the minor defects on the window screen frame. Perfect Size: The corner mount flat window spring in 0.2" in width and 2.1" in length. Suitable for the corner of a 3/8" or 7/16" thick window screen frame. Checking the window screen frame size before purchasing. Flexible & Durable: The window screen tension springs are made of stainless steel, strong with heat-treated, zinc plated and mill finished, stable and rust resistant. Hard to break and deformation, providing a secure and long-lasting hold for the window screens. User-Friendly Design: Easy and quick to install. just detach the window screen frame and replace the corner clips onto the edge of the window screen to create tension for holding the screen frame in place. Wide Application: The window corner mount flat spring can be used with different types of screens & frames, mitered, straight-cut and extruded sashes. 50pcs tension spring corner clips enough for your multiple windows., Manufacturer: AccEncyc