Tritan copolyester(PCTG Food Grade, NO BPA, Approved by FDA,NSF,ROHS) and non toxic material formed this super healthy portable blender for shakes and smoothies. Blades of mini blender are made of 304 stainless steel. You can make healthy smoothie, juice, milk shake, baby supplementary food,vegetable juice etc. 22000 RPM, different from others, Olivivi usb blender blades has been upgraded to a sawtooth design, which is faster and stronger than any other smoothie blender. Olivivi small blender is strong enough to have serious blending power to shredded fruits, vegetables and ice to perfection. Unique sawtooth design is decisive for a fruit mixing machine to avoid damaging fruit fibers to keep fit. One button, double-click to start to avoid accidental startup, for example: be accidentally touched in the bag. Meanwhile, it’s easy and convenient to make jucic with this one button mini mixer. Just cut fruit into small pieces(about 1 inch), put them into fruit mixer, shake it when blending, then you can schedule a fresh smoothies easily even in a busy morning