... SL-3015A1 Used to mark on the hand-written board with LED light and glass surface2 It is ... wirtting and erasing,clear handwriting,dry rub recipe,with a dry cloth or tissues can be easily ... whiteboard,glass,mirrors and the other smooth surface with graffity.5 The marker is liquid type ,can ... and environment6 Writing randormly on the highlighter board with LED light,light writhing ,bright color such as ...