Brand new Semiconductor coolers are a sort of strong state cooling that includes both semiconductor Technologies and electronic meeting techniques. Suitable for: small subject cooling, learning the main of semiconductor refrigeration, pet air conditioning, etc. Colour:Silver+blue Material:aluminum Size:98x60x46MM Package Contents: 2 x cooling blocks 2 x fans eight x screws 2 x solving screws 1 x water cooling heads 2x thermal adhesive Note: The refrigerating sheet isn't always included. Only the above kit content, various products usually are not included. Note: Light and various displays may cause the colour of the thing within the picture a bit of diversified from the genuine thing. The size allowed error is +/- 1-3cm.