Item Type: Copper Heat SinkMaterial: Red CopperSize (Length x Width): Approx. 15x15mm/0.59x0.59in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 120 PCS SET: The pack contains 20 pcs pure copper heatsink for use to solve laptop frequent crashes and other thermal conductivity problems. 2MAIN FUNCTION: The heat sink conducts heat and fills the space between the display card and the heat sink module to improve heat conductivity and reduce the maintenance rate of the graphics card. 3PURE COPPER: These heat sink pads are made from premium copper material, with strong heat conduction, fast heat dissipation and high practicability. 4WIDE USAGE: The heatsink shim can be used for passive cooling of notebook computers, CPU, GPU, ram, VGA, IC chips, etc. 5EXQUISITE WORKMANSHIP: The surface of the heatsink shim is smoothly, and the edges and corners are polished smoothly without burrs.