Review on 🔪 Lansky Double Folding Diamond Paddle: A Portable and Efficient Sharpening Tool for Professionals by Richard Alemayehu

Good for outdoor activities, to take with you in case a knife needs to be sharpened. For home use I would recommend more professional tools from Lansky, the pinnacle of their Chinese replicas :) Or for utility kitchen knives, a "household" knife sharpener (perhaps electric) that will give you, if not perfect, but a good level of sharpness will suffice minimal effort.