Have you experience harsh grating and scratches, damaged floors and chair legs when moving your furniture? It is possible that your furniture legs are not fitted with protectors or they may need to be replaced, you need these small patio glides not only because they give a nice finish to your furniture but also because they protect your outdoor patio floor from scratches and preserve the furniture's feet for a long time. Our wrought iron chair glides have a diameter of 1.5” that fits most pieces of patio furniture and can be easily installed using a rubber hammer or mallet without the use of adhesives. Before installing it is recommended to clean the cup area from any rust or debris, and then use a rubber mallet when installing and if it is hard to install, place caps in hot water for 5-10 minutes, it will soften the caps enough to get them in place. If you want to install these chair glides easily, be sure to measure the exact diameter of the wrought iron cup area where the glides will be installed beforehand, this is crucial. Specification : Color: black Size: 1.5 inch(38mm) Material: plastic Number Of Pieces:16/24/36 How to know whether they fit your patio furniture chair feet? 1,Confirm the shape of the feet cup,they should be the same shape as the furniture feet in the picture. 2,The inside diameter of these feet cups should be 1-1/2" (38mm) 3,They do not fit for chair legs with length of side smaller than 1-1/2" or larger than 1-1/2".