- Stabilizer for Pool Deck Umbrella Poles: Designed for 3.8 cm and 3.4 cm umbrella poles, our stabilizer sleeve adapter securely holds your pool umbrellas in place, enhancing stability and preventing unwanted movement, especially in windy conditions. - Durable Material Construction: Made from high-quality PC and ABS materials, this umbrella holder is resistant to UV rays, extreme temperatures, and moisture, ensuring it remains in excellent condition throughout multiple outdoor seasons. - Compatible with Specific Pool Sleeves: This product is specifically designed for Waterways and AquaStar pool deck sleeves with threaded fittings. It is not compatible with umbrella stands or tables, so please verify your sleeve type before purchasing. - Easy Installation System: Simply insert the stabilizer into your existing plastic pool deck sleeve and secure it with a screw cap for a quick, tool-free setup. Instantly create a shaded relaxation area by the pool. Use Scenarios: 1. Perfect for pool parties where stability is essential to keep umbrellas in place while providing shade for guests. 2. Ideal for beach days, ensuring your umbrella stands steady against the wind. 3. Great for family gatherings in the backyard, allowing you to enjoy outdoor time without worrying about umbrella movement.