Adjustable-angle multi-functional knife sharpener

Product Name: Knife Sharpening Tool
Box specification: 45*41*33 cm / 100 sets (old version)
49.5 * 37 * 24.5 cm / 50 sets (new version)
Product weight (including color box): 190g (old version); 330g (New Version)
Material: ABS, TPR, tungsten steel, ceramic, diamond sand, stainless steel