A multi gauge patio chair insert has flanges on it that allow for the patio furniture part to be fitted into various sized holes of patio furniture chair legs. The flanges on the multi gauge patio furniture part will flex and bend as the glide is inserted into the patio furniture chair leg or tube. Chair Care Patio Furniture Repair has a large selection of patio furniture repair parts to fit a variety of outdoor patio furniture styles. Square patio chair glides and Square chair leg inserts fit common patio furniture chair legs.To insure a proper fit, measure the inner dimensions of your patio chair leg and compare to the dimensions of the patio furniture part dimensions shown below. You can find more information about how to measure for patio furniture replacement parts in the FAQ section of our website.