A knife or other implement used for chopping food. A chopper makes quick work of chopping vegetables, meat, nuts, and even ice in seconds. A chopper may be motorized or operated manually. A handle is a part of, or attachment to, an object that can be moved or used by hand. The design of each type of handle involves substantial ergonomic issues, even where these are dealt with intuitively or by following tradition. A hopper is a storage container used to dispense liquids or solids through the use of a chute or tube to restrict flow, sometimes assisted by mechanical agitation or a pump. A hopper may be refrigerated or heated. A screw is a type of fastener, in some ways similar to a bolt typically made of metal and characterized by a helical ridge, known as a male thread external thread . Screws are used to fasten materials by digging in and wedging into a material when turned, while the thread cuts grooves in the fastened material that may help pull fastened materials together and prevent pull-out. A screw drive is a system used to turn a screw. At a minimum, it is a set of shaped cavities and protrusions on the screw head that allows torque to be applied to it. Usually, it also involves a mating tool, such as a screwdriver, that is used to turn it. Other examples include Phillips head screws and screwdrivers and Allen hex screws and wrenches. SpecificationsHeight: 2.31?in.?Width: 4.44?in.?Length: 4.38?in.?