Adjustable Umbrella Base Bracket with Multiple Size Options and Screws Features: Versatile Sizing Options: The reducing rings come in three different sizes (32 mm, 38 mm, and 48 mm), allowing you to choose the best fit for your specific umbrella stand,for ensure optimal stability and performance. Sturdy Stability: Despite their lightweight design, these adapters provide for remarkable stability under high loads, making them good for outdoor use and for ensure your umbrella remains secure even in windy conditions. Easy Installation: Simply insert the appropriate number of reducing rings to achieve the desired diameter of your umbrella stand, making setup a hassle-free process without the need for additional tools. Complete Package: The set includes three reducing rings, two screws, one base for ring, and a hole for parasols, providing everything you need for a successful installation and enhanced usability. Reusable Design: Designed for multiple uses, these rings can be easily removed and reinserted, allowing you to switch between different umbrellas or stands without the need for new accessories. Specifications: Name:Sun umbrella base bracket accessories Material:Plastic Size:As shown Color:Black Package Content: 3*tube mouth sleeves 2*screws 1*bevel sleeve 1*umbrella hole cover