Outwater 3/4in Square Aluminum Tubing in a black anodized finish is a lightweight yet rigid tubing solution for signage, displays, partition systems, furniture framing, and decorative applications. Made from extruded 6063-T5 aluminum with a .050 wall thickness, each 48in long square tube offers dependable strength, a clean professional appearance, and compatibility with F Series 3/4in tubing connectors and accessories for modular indoor assemblies; this pack includes 4 lengths.