In this chapter, I delve deeper into the argument about the ontological duality of egg donors in fertility clinics introduced in Chapter 6 , focusing on the delimitation, selection, and taming practices of the donor as body object. By this, I refer to the donor enacted as an object of extraction with agency that must be carefully tamed for successful IVF cycles. I focus on the difficult process of containing and standardizing donors’ genetic and phenotypical traits, which is aimed at controlling their capabilities and future outcomes. The impossibility of standardizing any of these categories highlights the social issues implicated in selective reproductive technologies. In this context, I show how these selection practices ultimately reproduce racial imaginaries and ideas of quality assurance.