When using hurricane shutter , it is important to apply even pressure while tightening to ensure a secure fit without damaging the shutter material. This careful technique prevents unnecessary strain, maintaining the integrity of both the shutters and the fasteners throughout their use. Features -Color:Silver -Material:Stainless Steel -Size:1.90X1.90X1.40cm/0.75X0.75X0.55in -Efficient installation process: hurricane shutter are designed for easy handling, making it a breeze to install and remove shutters in record time -High performance driver: the included driver enhances user efficiency, allowing for quick angle adjustments on hurricane shutters to match storm demands effortlessly -Adaptable for maintenance: with versatile wing nut attachments, users can easily perform routine checks and maintenance on their shutters without hassle -Simplicity in cleaning: specially designed cleaning make it easy to detach shutter panels for thorough cleaning, ensuring lasting performance and aesthetics -Versatile usage scenarios: ideal for all types of properties, these are an essential part of your storm preparedness kit for both residential and commercial buildings Package list: 20PCS Louver