Fellow Beekeepers please note, although the pack shows YELLOW as a colour do not be fooled. You will receive ORANGE. Not a lot of good for next year 2012 unless we all go orange. (Searches on Google will also show yellow in the pack)!
After contacting the seller this was the reply,
Sorry to hear that you not happy with your purchase, i checked product code 5014013 for Uni-Ball, and there is no mistakes. Uni Posca product code matches description on Amazon with item you bought, According to Uni-ball pack of 6 contains black, blue, red, green, orange, white inks, there is no yellow in the pack. Pack of 6 only available with orange colour from Uni-Ball. Unfortunatlly we can't change photo provided by Amazon once this product was already advertised on Amazon. if you don't require this colours, please send them back to us.
Some times colour shades on internet image may vary from actual product. i checked Google as well, and description say 'assorted pack'. i can send you a copy of Uni-ball catalogue with the same code and product description. Uni-ball doesn't do 6 pack with yellow colour, only with orange...
Still a good bargain for the following years though.