Kuretake Zig 1-Piece Posterman Biggie Marker with Xylene Free Ink, Green ZIG Poster man markers are one of the most versatile markers available with the rich opaque colors of poster paint in an easy to use marker Waterproof for outdoors use convenience of chalk with no mess highly opaque removable from nonporous surfaces using ZIG chalkboard cleaner Xylene free odorless AP Seal available in 23 colors including primary metallic and fluorescent hues for outdoor use in the convenience of a marker ZIG Posterman markers are one of the most versatile markers available with the rich opaque colors of poster paint in an easy to use marker Waterproof for outdoors use convenience of chalk with no mess highly opaque removeable from nonporous surfaces using ZIG chalkboard cleaner Xylene free odorless AP Seal available in 23 colors including primary metallic and fluorescent hues for outdoor use in the convenience of a marker