This Knife holder was designed to minimize countertop space (non-cubist) and since there were issues removing knives vertically from the holder, this magnet design was made.Inspired by several versions seen online, this requires only 6 of these 8x3mm fridge magnets off amazon or the ilk, tho neodymium magnets probably work just as well. And honestly, mine may have been neodymium, many available online but the specific ones i used are no longer available.No supports needed if printed with the bottom on the build plate.70 bottom layers will do for balance, or using Cura you can increase the bottom fill to 75%.Print time was ~30 hours on a Neptune 4 Plus.Measures at 200mm high (good for up to 8" chef knives as shown) and 300mm by 100mm along the base.