Features a super-sized plastic barrel and 1/4" tip. Perfect for making signs. Tips are 5/8" long. Sharpie Magnum Chisel Tip Permanent Markers feature durable chisel tips made for industrial-strength marking jobs. This permanent marker writes on most surfaces including wet and oily surfaces. The durable aluminum barrel withstands heavy use. Marker Type: Permanent; Color(s): Red & Black; Tip Type: Chisel; Ink Types: Non-Washable.