Medical products, namely, embolic microspheres for use in endovascular therapy, for treatment of hypervascularized tumors and to control and prevent abnormal bleeding; Medical products, namely, embolic microspheres for embolization in the form of particles; Medical products, namely, embolic microspheres in the form of particles to slow or block blood flow for mediating devascularizations; Medical products, namely, embolic microspheres in the form of particles to block blood flow throughout the vasculature system; Medical products, namely, embolic microspheres in the form of particles to treat hemorrhages, arteriovenous malformations, hemangioendothelioma, cerebral aneurysms, muscle hypertrophy, hypertrophic cardiomyopathy, gastrointestinal bleeding, trauma, epistaxis, bone cysts, bone metastases, vertebral metastases, varicoceles, congenital hemangioma, artiovenous fistulae, vena cava, vascular anomalies, priapism, prostatic hematuria, hemoptysis, hemorrhagic cystitis, and post-partum hemorrhage; Medical products, namely, embolic microspheres in the form of particles to prevent or reduce blood flow through any tissue or organ of interest in order to reduce the growths of hypervascular tissues or malignant cells, tumors, lesions, hepatocellular carcinoma, and fibroids; Medical products, namely, embolic microspheres in the form of particles to treat vascular conditions; Medical products, namely, embolic microspheres in the form of embolic particle implants; Medical products, namely, embolic microspheres for treating vascular anomalies of the body