All stainless steel material is very hygienic and durable (unlike plastic). This ring-shaped stage helps the ingredients to stay longer in the spinner, to maximise pulping efficiency. High torgue/Dual speed rotation of 9,000 rpm and 13,200 rpm, processes the ingredients completely with sharp blades. Easy to remove and clean. A shallow hole is processed manually to realise the best balance performance. High speed rotation tends to produce vibration due to the balance deviation of the rotator. The holes prevent this symptom to maximise the extraction power of juices.