RIGUR / RGD450 / 1KG / PACK OF 2 Stratasys Sale! from 65300 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. SKU: OBJ-04066 Tweet Simulated Polypropylene material is tough, flexible and durable. It enables you to 3D print precision prototypes that look and behave like polypropylene.