We offer Casted Ring Extensions that are circular shape with a width strip along their circumferences. The four fastening pit holes along the circumferences allow proper fitting with the system. The Casted Ring Extensions are made up of quality raw materials that permit them to be adjustable in all kind of working environments. The standard sizes of Casted Ring Extensions available with us are 20mm, 25mm, 32mm, 40mm, 50mm etc. Offered in black & galvanized finishes the Casted Ring Extensions look very fascinating.