Swibo knives is a famous professional line of knives today produced by the Swiss company Victorinox. The characteristic yellow handles are made of non-slip nylon, they do not absorb grease or dirt. The blades are specially high carbon content, treated and hardened to offer greater hardness and flexibility and a more durable cutting edge that has made them more appreciated by professionals all over the world. All Swibo knives feature bright yellow handles that are a signature of the brand. Swibo was a part of the Swiss brand Wenger until it merged with Victorinox in 2005.