【Important Notes】 Cases thicker than 15mm are not compatible. Not compatible with round louvers. Hook length adjustment range: 11mm~23mm. Please be sure to check your car before purchasing. 【Industry First - Spring-Type Hook - Easy Installation】 With conventional tightening-type hooks, the holder may fall off during installation. We have improved this point and developed a new spring-type hook. By adopting an automatically extending spring-type hook, it automatically fits simply by inserting the hook into the air vent. And, it locks in just one second, so you won't have to get annoyed by twisting and turning for a long time. No need for repeated adjustments, and super easy to install with one hand! *Note: The lock mark will not be fully locked until it aligns with the arrow. 【Stylish & High-Quality Acrylic - Semi-Transparent Contact Surface】 The matte contact surface made of acrylic material has excellent abrasion resistance and durability, and will not scratch the back of your smartphone or your phone case. The design is based on a semi-transparent material that incorporates the surrounding colors and shadows, making it look even more stylish. It blends seamlessly with any interior color. It doesn't overstate its presence, and looks stylish even when your smartphone isn't placed on it. While making the most of your smartphone's original color design, it creates a more refined atmosphere. Stability and appearance are comprehensively upgraded. 【One-Touch, One-Hand Removal, Clip-Type, Airbag Pad】 There is a yellow button on the back, and pressing it with one finger supports smooth attachment and detachment, which is completed in just 0.5 seconds. The clip is firmly constructed to prevent slippage due to the weight of the smartphone, preventing loosening while driving. Thick silicone airbag pads are attached to the back of the clip and hook, providing abrasion resistance and durability while absorbing vibrations from the car. Non-slip rubber is also used on the surface that contacts the smartphone. It firmly protects your precious smartphone from scratches. Enjoy a safe and comfortable drive.