Improved driving comfort: The surround design reduces wind noise and prevents debris from entering the cabin, improving your overall driving experience. Compatible with car window knobs and soft window frame mount knobs. Stable and secure: An advanced locking system provides a tight, secure fit, keeping the window frame firmly in place for added safety during operation. Noise reduction: The surround design minimizes wind noise during travel, helping to maintain a quieter, more enjoyable ride. Precision fit: Designed for most car models, these knobs fit well with soft window frames, enhancing both function and aesthetics. Suitable for use with soft window frame mounting pins and related window frame components. Key attributes Function: wind noise reduction, debris protection, secure window frame Compatibility: most car models with soft window frames Size: designed to fit typical soft window frame dimensions Material: not specified by the product description Performance: improved comfort, stability, and quieter cabin during driving Use scenarios Scenario 1: Driving a convertible with a soft window frame on highways or coastal routes where wind is strong, to reduce wind noise and minimize debris entry. Scenario 2: Daily commuting in urban or suburban areas where secure window frame mounting prevents rattling and enhances safety during routine stops and starts. Scenario 3: Upgrading older or compatible vehicles to achieve a more secure fit and improved aesthetics for the soft window area, across a range of car models.