Gestor Mixer grinder comes with beautifully designed Stainless Steel Jars that are durable. Also, the razor-sharp blades with an RPM of 17000 - 20000 help in reducing your preparation time by precisely chopping, grinding and mixing various ingredients of different sizes and shapes to the desired size or consistency. Using the Speed Knob, you can select the desired speed while grinding and mixing your food items. It also comes with the 'whip' feature that allows you to run the mixer grinder at its highest speed, so you can blend delicious smoothies, grind chillies and other veggies in seconds. To meet your precise chopping and grinding requirements, Spicy Dlx has made its rotator blades - razor-sharp. This helps in chopping hard and coarse ingredients such as, black pepper, cardamom and other ingredients in very little time.