Angle Iron Flat Bar Aluminium Extrusion Foot Caps or Flat Bar Angle Iron Aluminium Extrusion Foot Base Caps, Metal Profile Caps, Metal Extrusion Caps, Shelving Corner Caps, Angled Iron Plastic Caps, Tee Shape Angle Iron Caps, 90 Degree Plastic Feet and Flat Bar Caps. Designed simply to push over the bottom of Angle Iron Profiles, protecting the Floor and acting as a Foot.