Clingo Cushions 15 inches Indoor/Outdoor Round Seat Pad with Neodymium Magnets (Tan) for Bistro Chairs and Bar Stools Spun Polyester Imported Color: Tan; Size: 15DiaX2.5D (inches) Fabric: Soft, UV Treated Spun Polyester The magnets embedded to the base of the cushion enable the cushions to conveniently attach to the metal surface of the chairs eliminating the need for the ties. Filling: High density Polyurethane Foam Pad, Neodymium Magnets: 6 Concealed zipper closure;