Review on AMMSUN Adjustable Portable Umbrella Base - Heavy Duty Metal Holder For Versatile Use In Various Grounds - Ideal For Outdoor Parks, Patios, And Beaches - 2 Pack by Ernest Etienne

I'm using this for a heavy metal birdhouse mounted on a pole. However, I can see why this anchor would work in sand or soil as it's heavy steel with a very wide and long spike to sufficiently support a beach umbrella.My mounting pole came with a plastic sleeve that had to be carefully submerged in the ground than surround by rocks to anchor it. The pole is still wobbly so I decided to search further and the Ammsun anchor is exactly what I wanted. It keeps the pole and birdhouse stable and straight. It doesn't shake in the wind and is steady since I attached a metal 18" squirrel/raccoon baffle to the pole. In our world of mass produced plastic product this anchor offers the weight and stability offered by steel.