HIGH QUALITY MATERIALS: heavy spiral dough hook for mixer is made of food grade stainless steel. Compared with nylon coated dough hooks, dough hook is rust-proof and corrosion-resistant, and can be used for many years. You don't have to worry about the coating easily chipping during use. EXCELLENT BEATER REPLACEMENT: Compatible with for 4.5-5 quart tilt-head stand mixer bowls. Fits for K45, K45SS, KSM1, KSM75, KSM8, KSM9, KSM90, KSM95, KSM100, KSM103, KSM105GBCER, KSM110, KSM120, KSM15, KSM150, KSM150PS, KSM155GB, KSM152, KN15E1X and so on. 4.5-5 QUART FLAT BEATER: When you using for stand mixer to kneaddough,the stainless steel spiral k45dh dough hook is a good companion. The dough hook creates gluten in the dough, which is what keeps the air in the dough. It make the dough smooth, and chewy, perfect for mixing bread dough, pizza dough, noodle dough and cookie dough etc. EASY TO USE & CLEAN: No additional tools are required to install this spiral dough hook to a suitable mixer. After