The Victorinox Edge Magnets are magnetic knife sleeves designed to protect the blade from being damaged or dulled while being stored. The Edge Magnets, from Victorinox Knives, fold over the knife's blade holding them tight in a magnetic sleeve while not in use. The multi-poled magnets will not magnetize your knives and allow you to store them virtually anywhere without having to worry about cutting your hand on an edge when looking though drawers. Victorinox Edge Magnets come 3 per pack, are hygienic and dishwasher safe. We offer the Edge Magnets in four sizes: 7", 9", 10 1/2" and 12 1/2". The lengths refer to the blade size they will cover - see the list below for model by model clarification. These edge magnets are protected under the Victorinox Lifetime Warranty.