Magnetic rod sleeve is made of medical grade polypropylene PP, chemically stable, high safety, thin walled, with high thermal conductivity, enabling the reaction solution inside the tube to reach the target temperature quickly, the magnetic rod sleeve can be used with deep-well plates, suitable for a wide range of nucleic acid extraction instruments. Deep-well plates are dimensionally compliant with SBS international norms, made of medical-grade polypropylene PP, chemically stable and safe, autoclavable, suitable for multi-channel pipettes and automated equipment, meeting the needs of fully automated workstations and laboratories.