ITEM NAME:1Set Aluminum M.2 NVMe SSD Heatsink M.2 Solid State Hard Drive Radiator CoolA3C Specification: Name: Heatsink Material: Aluminium Color: Silver Tone Size: Approx. 70x30x22mm For: Hard Disk M.2 NVMe SSD Tip: Tear apart the two thin film of the silicone pad and stick it between the heat sink and the hard disk, and tie it with a rubber bands (not blocking the interface and the screw opening). Package Incude:1Set( Heatsink+ Silicone sheet+High-temperature rubber bandsï ¼â€° Note: Please allow 1cm error due to manual measurement and make sure you do not mind before ordering..Material: Aluminium. Tip: Tear apart the two thin film of the silicone pad and stick it between the heat sink and the hard disk.