Intersig's Circular Wire Spacers provide a quick and easy method of supporting reinforcement in concrete slabs. They are supplied in 3 metre lengths and are formed into a 1 metre circle on site using tying wire. Height (mm) Top Bar (mm) Stirrup (mm) Bottom Bar (mm) Length (m) 50 3.3 3.3 3.3 3 60 3.3 3.3 3.3 3 75 3.3 3.3 3.3 3 90 3.3 3.3 3.3 3 105 3.3 3.3 3.3 3 120 3.3 3.3 3.3 3 135 3.3 3.3 3.3 3 150 3.3 3.3 3.3 3 165 3.3 3.3 3.3 3 180 3.3 3.3 3.3 3 200 3.3 3.3 3.3 3