White PVC Vinyl Pergola Finial Cap For A True 1.75 Inch X 3.5 Inch Rail | Single Pack | AWCP-FINIAL-1.75X3.5 The Pergola Cap fits externally on a true 1.75 in. x 3.5 in. vinyl rail | Simple to install | Made in the U.S.A. Manufactured from premium quality, durable PVC vinyl | Maintenance Free: Simply slide the pergola cap onto your rail. Set it and forget it. | Limited lifetime warranty Will not fade, discolor or warp | UV Resistant | Water Resistant | Use vinyl glue (not included) to secure the cap Maximum profile dimensions: 1.76 in. x 3.51 in. | Corner radius: .156 in. | Overall outside dimensions: 2 in. x 3.75 in. x 5.75 in. | Color: White Complete your pergola, gazebo or arbor with the elegant look of the 1.75 x 3.5 pergola finial cap