The grinder has a plastic construction which makes maintenance effortless. The stainless steel drum inside resists corrosion, thus thwarts repairs in the future. The durable and rust free components of the device elongate its overall life. Ultra Perfect Plus Wet Grinder Features . Easy lock system. Digital Timer for user converience. Elgi Ultra Perfect S 2.0-Liter Table Wet Grinder with Atta Kneader, 110-volt. ... Ultra wet grinders patented conical grinding stones generate less heat while grinding, resulting in higher fermentation rise. This not only means soft and fluffy idlis but more numbers of them too. Enjoy both the efficiency and excess of great engineering. This item Ultra Perfect Perfect S Wet Grinder Coconut Scraper Attachment. $29.99. Only 20 left in stock - order soon. Ships from and sold by Gandhi Appliances. FREE Shipping. Elgi Ultra Perfect S 2.0-Liter Table Wet Grinder with Atta Kneader, 110-volt. $314.99.