The refreshed Sonnet Premium collection benefits from Parkers expertise in fine pen making. The stainless steel caps of the four Premium finishes have been deep chemical etched to ensure the intricate patterns are finished to the highest standard. Featuring a precious material in metal and black finishes, the Sonnet Premium collection remains a timeless symbol of elegance. 18K Solid Gold Nibs accentuated by a current rhodium stamp of the Sonnet Premium collection brings sophistication to every intricate writing occasion. Fine and medium nibs are available in two writing widths and includes an ink cartridge and converter.