Its structure is simple, and its mini size can save space and is very easy to use. The heat sink is not only simple in structure, but also compact in size to save space and make it very easy to use. Made of high-quality pure copper material, it is durable and has a good heat dissipation effect. The length of the product is 6.3cm and the width is 2.3cm. There are a variety of thickness including 0.5mm, 1.5mm, 2mm, 3mm. It is universally used for notebook memory module. Item Name: Heat Sink Material: Copper 0.5mm, 1.5mm, 2mm ,3mm Size Details: Size: 6.3cm x 2.3cm/2.48" x 0.91" (Approx.) Thickness: 0.5mm/0.02", 1.5mm/0.06", 2mm/0.08", 3mm/0.12" (Approx.) Notes: How to determine the thickness of the heat sink you need: The thickness of the purchase needs to be selected according to the actual thickness of the notebook. If you do not know the thickness, you can use a coin to measure it, which is 2mm. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Heat Sink