Bulk Colored Pencils

I want to buy colored pencils Derwent for my art shop, but I want to buy them in bulk, but whether there £ 13 each, I do not want to but all i want to get a price discount the purchase of more than 1. So can someone please tell me a good and cheap place to get Derwent colored pencils in bulk. I do not mind that box of crayons, they are, but they need to be Derwent?

You can buy them through dickblick.com and get discounts for buying in bulk.

Here it is ... http://www.amazon.com/gp/redirect.html?i
Good luck!