The Premium Jade Stone is used as a pallet for eyelash extension glue to prevent rapid drying during the application process. If immediately cleaned, a non-acetone product can be used on the stone or if the glue has dried hard, acetone may be used to remove glue. Each piece is as unique in coloring as real jade stone and may not appear exactly as pictured. Jade Stone can be cleaned off with acetone after each use or soaked over-night in acetone for hard to remove glue.