Fraser Essentials Classic White Chalk Block - Twin PackThe Fraser Essentials Classic White Chalk Block is soft and makes applying chalk to larger areas easy, while providing excellent coverage. Apply to white areas to make your whites even whiter or to cover areas which are discolored, while giving a natural look and feel. The blocks can be easily broken in half to use on smaller areas. Doe not contain bleach or bleaching agents. Pack contains 2 9cm x 9cm blocks in a reusable zip lock stand up pouch.