The Trex Signature® Aluminum Railing System is made of durable powder-coated aluminum that retains color and resists corrosion, all with a modern look. With exceptional style and strength, the Trex Signature® Aluminum Railing Collection includes: 1 Signature Aluminum Post with a post cap and post skirt; and 1 Signature Rail Kit with Square Aluminum Balusters. The Signature Aluminum Railing Collection Kit is designed for and includes all Trex materials necessary for one (1) 6-ft railing section. Assembly is required.