Soil surfactant used to promote uniform movement of water in soil

[ Writing instruments; markers; ink pens; mechanical pencils; ] pens [ ; ball point pens; pencils; fountain pens; gel roller pens; stick markers; chalk; marking pens; paper staplers; stationery; adhesives for stationery or household purposes; glue for stationery or household use; drafting rulers; pastels; crayons ]

Lubricating oils and greases