Welcome to the store! Reliable and reusable, sturdy and safe, with high temperature and weather resistance, threaded knob is made of quality black plastic and stainless steel, not easy to break or rust, which can be used for a long time Effectively reduce the wind caused by the umbrella shaking; Also can protect your umbrella to avoid friction on the umbrella pole scratches and dents Easy to use: you can choose 2 sizes of umbrella hole protectors according to your umbrella pole with different diameter, put them together tightly to keep the umbrella stable; Then tighten the M8 40mm thread after installation and adjust the knob to avoid the umbrella slipping. Widely applicable: these umbrella replacement parts are practical and classic tools that can be installed in most umbrellas for more outdoor space, such as beaches, backyards, balconies, poolsides and more, bringing much convenience. Material: Metal+Plastic Color: Black Package Contents: 1 x Umbrella Base Stand Replacement Set (12pcs) The above package content only, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +- 1-3 cm. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!