Model 339G is a cylindrical pencil case, 20 cm long with a 7 cm diameter, in black fabric with a coloured stripe along the top and matching round end caps. A smooth zipper opens two compartments with an inner mesh pocket, and a bright yellow-green carry loop is attached at one end. Colours are blue, pink, light blue, mint green, lavender and white. The round tube stores pens, pencils, erasers and markers.