Brand new Semiconductor coolers are a sort of stable state cooling that comes with both semiconductor Technologies and electronic meeting techniques. Suitable for: small space cooling, learning the main of semiconductor refrigeration, domestic dog air conditioning, etc. Colour:Silver+blue Material:aluminum Size:98x60x46MM Package Contents: 2 x cooling blocks 2 x followers eight x screws 2 x fixing screws 1 x water cooling heads 2x thermal adhesive Note: The refrigerating sheet is rarely included. Only the above kit content, other item should not included. Note: Light and diversified displays may cause the color of the article in the picture somewhat diversified from the real thing. The measurement allowed error is +/- 1-3cm.