Medical devices for embolization, namely, syringes and vials filled with embolic microspheres for embolization; Medical devices for embolization, namely, embolic microspheres for embolization in the form of particles; Medical devices for embolization, namely, embolic microspheres in the form of particles to slow or block blood flow for mediating devascularizations; Medical devices for embolization, namely, embolic microspheres in the form of particles to block blood flow throughout the vasculature system; Medical devices for embolization, 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 devices for embolization, 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 devices for embolization, namely, embolic microspheres in the form of particles to treat vascular conditions; Medical microspheres for transarterial embolization of tumors, chemoembolization, transarterial chemoembolization, lesion devascularization, lobe devascularization, and proximal embolization; Medical microspheres for the treatment of hypervascular tumors and arteriovenous malformations; Medical microspheres for super selective, targeted chemoembolization of a hypervascular tissue or tumor; Drug delivery device, namely, a drug delivery microsphere for carrying pharmaceuticals or drugs to a precise vasculature bed for localized treatment; Drug delivery device, namely, a drug delivery bead for carrying pharmaceuticals or drugs to a precise vasculature bed for localized treatment