Are you looking for a reliable, versatile, and stylish solution to secure your outdoor umbrella?  This  Round Shape Umbrella Base is exactly what you need.  Designed with functionality and elegance pattern, this umbrella base holds your umbrella stable, while complementing your outdoor setup.  Weighing in at a solid 26. 5 lbs, the base strikes the perfect balance between stability and portability.  It's heavy enough to securely anchor medium-sized umbrellas (6’ to 9’ in diameter) but still light enough for easy movement.  Even a lady or youth can reposition it without hassle.  With an 18" diameter, this umbrella base can stand alone or fit neatly under a heavy-duty table for extra support.  Whether you're securing a small or large umbrella, this base offers the flexibility to accommodate umbrellas with a variety of straight poles.  This base comes equipped with various collars, making it compatible with umbrella poles ranging from 1. 3" to 2".  No need to worry about mismatches—this base is designed to cover most straight pole market umbrellas.  Made from high-quality HDPE (high-density polyethylene) and concrete, the  umbrella base is rust-free and weather-resistant.  You can leave it outside in any season without worrying about damage or stains to your deck or patio.  Whether you're hosting a summer barbecue, relaxing by the pool, or simply enjoying your patio, the  Round Shape Umbrella Base is the perfect accessory to keep your umbrella secure and your outdoor environment stylish. 
Dimensions: 17. 75" Dia.  x 12. 6"H
Fit for up to 1. 9 in Dia umbrella poles
All weather resistant
Easy assembly
Good to be free standing base for 6' to 9' market umbrella
Recommend to use with a heavy-duty table as combination to secure a large sized market umbrella above 9'
Suitable for straight pole market umbrella only, not good for cantilever umbrella. 
Good match with  brand patio umbrellas