Dr Tech 3HP High-Performance Commercial Electronic Blender Personal Multi-Function Mixer , Black and Silver, Power Elite, with stainless steel blade (Silver) www.youtube.com/embed/U1bj1j6ldC0 One machine with multi-function. Used 2 in 1 knife assembled, can maked smoothie, juice, soybean milk, no need to change knife or cup; Used hardness Stainless steel knife;Use import bearing and grease seal, good sealing and not leakage, long life of the product. Industrial high speed motor, big power, high efficiency. Use pure copper wire for motor 3 Protection, safety switch, over current proection, temperature fuse Use food grade transparent Polycarbonate for cup, not easy for motor broken, high temperature endurance;