Manual Open & Close. 210D rPET And PU With UV Coating. Made From Post Consumer Recycled Materials. Recycled Polyester (rPET) Is Obtained By Melting Down Existing Plastic Bottles And Other Material Sources To Create New Polyester Fiber. Clamp, Closure, Shaft & Ribs Are Not rPET. Unique Canopy Design For Maximum Coverage. Sturdy Clamp With Adjustable 360degree Swivel. Fits Most Standard Folding Chairs, Strollers, Wheelchairs Etc. Iron Shaft. Hook & Loop Closure. 33 1/2″ Closed.