Adjustable Helical Thumbscrews: Customize the tension for a precise and secure fit on various materials. Portable Size: Lightweight and compact, ideal for on-the-go convenience. Easy To Install: Quickly set up and secure your tarps or covers with ease. Weather-proof: Built to withstand harsh weather conditions, these clamps are perfect for outdoor use. Superior Holding Power: Ensure your belongings stay put with our heavy-duty clamps designed for maximum strength. These clamps, featuring adjustable helical thumbscrews, provide a customized grip that's perfect for securing tarps and covers. They're portable, easy to install, and weather-proof, offering superior holding power for your outdoor adventures. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store