SODIAL(R) Silver Tone Aluminium Heat Diffuse Heat Sink Cooling Fin 120x100x18mm Product Name : Cooling Fin;Material : Aluminum Color : Silver Tone;Hole Diameter : 2.4mm/0.09" Hole Number : 10;Fins Number : 16 Overall Size : 120 x 100x 18mm /4.7" x 3.9" x 0.7" (L*W*H); Package Content : 1 x Cooling Fin