The transport and exchange between the hypothalamus arcuate nucleus and anterior pituitary glans is Thanks to the hypophyseal portal system. It is a system of blood vessels in the micro circulation at the base of the brain. The main hormones transported by the system include gonadotripin-releasing hormone, corticotropin-releasing hormone, growth hormone-releasing hormone and tyroytropin-releasing hormone.
In my opinion black is better because it goes with every color of clothes you have.If you spill something on it you can't really tell either.But every one has there opinions.:)