Campbell Hausfeld WT220100AJ Welding Replacement Round Soap Stones - 6 Pack Campbell Hausfeld replacement soap stones are used as markers when welding Campbell Hausfeld soap stones have a high temperature resistance Contains 6 Round soap stone replacements Stock up on our high heat resistant soapstone markers so you will never be out of them Dimensions: 6.5 by 0.75 by 1.88 inches; model number WT2201