Sterile ducts are useful for preventing blood or other fluids from contaminating other areas that are not being operated on. How to use: Check the outer packaging of the product. Do not use the product if the packaging is damaged or leaks. Low poly is a polygon mesh in 3D computer graphics that has a relatively small number of polygons. Low poly meshes occur in real-time applications as contrast with high-poly meshes in animated movies and special effects of the same era.