Black Aluminium Finish 6063 Extruded High Strength Aluminium Available with an Opal Polycarbonate Diffuser Each Metre includes two End Caps & Recessed Spring Brackets Compatible with all LED Strips & Rigid Bars Available with straight and corner coupler components to be used when joining lengths together & fabricating corner shapes. The LINEAR Effect: Extrusion depth of 35mm LINEAR finish when combined with 60+ LEDs per metre Strips & Rigid Bars