The aluminum tube profile can be cut to your desired length. It is made of 6061-T6 aluminum which provides a high strength-to-weight ratio and is commonly used with stanchions to create custom axes. It can be used for projects that need an open center cavity or that don’t require a T-slot channel. There are options available in a mill or black anodize finish. Additional Information: This product is available up to 144" but for on-line orders, this product is only available up to 89".