The double retainer profile can be cut to your desired length. There are options available in mill or black anodize finish. It is commonly used to mount a panel or mesh when it is recessed within the T-slot or on the profile frame. When used in this capacity it is a strong fastening option that is simple to use, provides stability, and reduces vibration. The double retainer profile is also frequently used to create a custom retainer in instances when a T-slot profile is connecting two adjacent panels. Additional Information: This product is available up to 145" but for on-line orders, this product is only available up to 89".