I am very picky about my umbrella bases. I have a son in a wheelchair and two summers ago the umbrella tipped onto him base included. I have bought 4 other bases in the last 6 months getting ready fir summer and I have sent all back. I am so happy to say these two umbrella bases I bought are staying. Great quality of materials. Very strong and very steady once water is added. Thank you for having pride in the quality of your work