5kg cast iron slotted mass 5.25" diameter x 2" thickness .75" slot is 3.25" deep Use as individual mass or as component in Eisco's PH0264B product line Forged with raised '5KG' marking This cast iron slotted mass is 2" thick and has a .75" slot with a 3.25" depth. It has a 5.25" diameter and has a raised "5KG" marking. Supplementing this with other weights from the Eisco PH0264B product line is recommended.