The MJ 550 has been upgraded with a more powerful motor and safety overload switch, and is the first and best electric wheatgrass juicer for home use. This little workhorse is dependable and extremely easy to clean and use. Great for wheatgrass, soft fruits and berries. Miracle Wheat Grass Juicer Model MJ550 is a great machine for those who are just starting to juice. The Miracle MJ550 juicer is used mostly by those who juice their own wheat grass. The motor housing is a pleasing contemporary design.