The heavy duty clip-on range is a replacement for concrete blocks and wire chairs in the heavy precast market, overcoming concrete compatibility, moisture retention and rust problems. A quick easy to use bar chair which is versatile, strong and robust. The heavy duty bar chair has been tested to 200kg in most cases, ensuring it will support heavy loads on site. Steel fixers walking freely on the bar or mesh, will be greatly impressed with its strength and stability. Ensuring minimum cover requirements has never been easier. The range is versatile in the range of bar sizes they can accommodate, Y12 and Y16 as a clip-on and also up to Y28 in non clip-on applications. Quality plastic used in the manufacture and the compact design adds to their strength and the grey colour blends in with the concrete.