Specification Brand : Yuecoom BulletPoint1 : Versatile Clamping: Umbrella clip holder features large clamp openings that can be securely, attached to surfaces ranging from 0‑5cm thick. attached to bleachers, benches, tailgates, boats, poles, boats, fences, etc. BulletPoint2 : Quick Release: Quick set up, quick release. For umbrellas, flags and fishing rods. The 38 mm diameter tube, equipped with thumbscrews, securely holds your umbrella while allowing you to adjust the height to your liking BulletPoint3 : Set Screw: Umbrella fixed clip holder is designed with a convenient set screw feature. By simply twisting the screw, you can easily adjust the hole diameter to accommodate umbrellas of different sizes. The maximum thickness of the caliper is 5 cm BulletPoint4 : Use: Clip holder is perfect for instant shade and is highly versatile. Whether you need shade at sporting events, outdoor work, or recreational activities, holder is your go-to solution. Plus, its compact design makes it easy to store in your trunk BulletPoint5 : Prime Material: The umbrella clip bracket is made of premium carbon steel material with galvanized outside, which is very strong and durable for long time use, providing you with a reliable and sturdy support for your umbrella Color : defult ItemName : Yuecoom Umbrella Clamp, 38mm Upgrade Set Screw Adjust Height Chair Stand Holder, Thickening Multipurpose Umbrella Fixed Clip Stand for Patio ItemPackageQuantity : 1 ItemTypeKeyword : patio-umbrella-bases Manufacturer : Yuecoom Material : default PartNumber : Yuecoomptms3dwro7 ProductDescription : Specification: Item Type: Umbrella Clip Holder Material: Carbon Steel Weight: 556g / 19.61oz Inner Diameter: Approx. 3.8cm / 1.50in