Layered device spring: 5 layers slicer cutter layered device spring, spring inside the slicer clamp the blade perfectly without any loose or fall off Operation is simple: press two button of slicer to clamp knife blade at same layer, move the blade horizontally at flat surface, you can get ideal uniform cake or toast slice at anywhere Use with serrated knife: suitable for cake size 10 inches and below which depends on the blade length of knife Material and compact design: made of plastic with built-in stainless steel spring, tasteless, non-toxic and easy to clean; The size of the cake slicer is 2.36 x 2.36 x 1.18 inches, small size, lightweight, easy to carry and storage Use occasions: a great tool for kitchen or baking use, good kit for cake layer slicing; Ideal for both professional and amateur bakers alike