Automatic Knife Sharpener Electric:Suitable for chef knives, Stainless steel knife, bread knives,paring knives, filet knives, cheese knives, cleavers, but not for porcelain knives and grinding ceramic knives or scissors Small Electric Knife Sharpener:Pocket knife sharpener electric for easy storage How to use: You must place the knife at 45 degrees, move it slowly, and stop for 1-3 seconds to achieve a sharp effect. Please refer to the instruction manual, improper use may result in failure to use. Sales service: If you find a product quality problem, we will exchange it for free or refund Note:This product requires 4 AA batteries (the battery is not included). When installing the battery, please pay attention to the positive and negative poles of the battery. Improper installation of the battery may result in abnormal use. We truly believe we make some of the most innovative products in the world, and we want to make sure we back that up with a risk-free ironclad 45 day guarantee. If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase. Buying items online can be a daunting task, so we want you to realize that there is absolute ZERO risk in buying something and trying it out. If you don't like it, no hard feelings we'll make it right. We have 24/7/365 Ticket and Email Support. Please contact us if you need assistance. Remember: Shipping usually takes 2-3 weeks read our Shipping for more details!
