... .22mm wall thickness of the aluminum bracketFeature:1.Box area is the table surface,no screws,fully folding design,extend to ... use and practical!2.Can be folded into a suitcase within a minute.3.The central can be insert the umbrella ... )4.For four people sit.5.Open it is a table and chair,folded is a suitcase,very convenient to carry.6.Rust protection ...