General's Jumbo Carbon Sketch Stick combines the smoothness of graphite and the darkness of charcoal. It lays down smooth, strong, jet-black lines that are perfect for large drawings and sketchings.The stick can be purchased alone or with a Jumbo Clutch Holder. The holder allows you to use the Jumbo Carbon Sketch Stick and still keep your hands clean.Jumbo Carbon Sketch Stick measures 3/8 in. across and 3 3/4 in. long.Jumbo Clutch Holder measures 5/8 in. across and 4 1/2 in. long.