Spark Glitter highlighter with double-sided design incorporates a broad, 4 mm glitter chisel tip for highlighting blocks of text on one end and a fine, 0.6 mm tip for writing and underlining on the other end. Spark Glitter highlighter with double-sided design incorporates a broad, 4 mm glitter chisel tip for highlighting blocks of text on one end and a fine, 0.6 mm tip for writing and underlining on the other end.