1. The universal umbrella stand is made of nylon material, with super strong anti - drop and anti - compression performance, excellent in anti - drop and anti - compression, more professional and practical. 2. [Practical] The built - in universal umbrella stand with threads is all made of imported pure copper. It locks firmly and does not fall off, and can be firmly locked without unlocking. 3. [Universal application] One mounting bracket can fix fishing umbrellas, supports, fish protectors, and bait trays, and all these functions can be realized. The advantage of the universal multi - functional fixing bracket is that a universal adjustment rod is added to one fixing bracket. 4. [Wide application] It is not restricted by angles during use, allowing you to enjoy using it at various angles. It is suitable for fishing forts, fishing boxes, fishing rod platforms, fishing chairs, fishing boxes, umbrellas, etc., and is very popular. 5. [Easy installation] It can be easily installed on any fishing chair, with 360 - degree adjustability, rotation, tilting and locking. It can be adjusted vertically or horizontally. Using screws to fix the frame saves time and improves efficiency.