FeaturesEveryday permanent markerBlack chisel tip for variable line widthWrites on almost any surface rough or smoothChunky barrel for firm gripClose-fit cap protects nibPacked with indelible ink, the Office Outlet Permanent Chisel Tip Marker (Pack of 10) writes on almost any surface, from plastic and wood to glass and metal.  The chunky barrel provides a firmer grip, increasing control and comfort. With a chisel tip, these markers give you a choice between thick or thin lines to suit your style and requirements.