Popular in 17th and 18th Century Germany, Belgium and The Netherlands, The Koff-type of vessel was a mid-sized ship roughly 80 feet long and displacing around 150-200 tons. Similar to The Fluyt-Class, they were ideal for cargo and transport use (owing to their deep set hulls). The Koff was also ideal for use in shallow waters. Normally seen with 2 to 3 Masts, they could crew up to 100 men. On some occasions, they were fitted with defensive measures (small Swivel and Deck guns).