These wax cross cones direct the flow of your high density precious metals outward and then up through the feed sprues of your castings to reduce erosion and damage that can be caused to your mold cavity and designs by the high velocity, high density, high temperature metal. These are the thin version of the cross cone. Of course you can modify the length or number of the arms of the cross cone depending on the ID of your flask or how many parts you need to cast on that tree. A Thicker version is coming soon for heavier castings. These do not come on the base paper, the wax cones come in a plastic bag. It is best to stock up on them in colder months. They are wax after all.