The safety protection switch is installed in the machine. When the cutter is exposed, the machine can not be locked in self - lock to ensure safety.The blade is made of special stainless steel and durable. Removable disposable knife group, after each use, only a slight cleaning tool group, and then add the zero degrees Celsius freezer preservation, directly installed on the machine can be used next time. QSJ-T Shredded Meat Cutting Machine 3mm 110V with Double Motor. Orders are processed from Monday-Friday; Not on the weekends & public holidays. We will work with you to get the case resolved in the fastest method. Please contact with us at first for more details. If product was received damaged or not as described, please send us some pictures or videos, so we could well understand your problem, then solve them for you ASAP. Besides, it's much helpful for us to claim with UPS, remind our related department to pay much more attention to packaging later on. If an item is received damaged, customer service must be contacted within 7 days of receiving your item. This item is in the category "Business & Industrial\Restaurant & Food Service\Commercial Kitchen Equipment\Food Preparation Equipment\Commercial Meat Processing Equipment\Meat Cutters & Slicers". The seller is "yaxun_shopping23" and is located in this country: US. This item can be shipped to United States.