Slight imperfections to exterior of some of the valves such as blue paint slightly faded off from rattling next to other calves or slight discoloration of brass in spots, which likely will not affect performance of valve as the interior is what actually stops flow of materials and functionality of valve. Seller assumes no responsibility as these valves are not tested. They are new. The majority are in perfect shape. If you are particular with the exterior’s appearance, message me and I will give you one of the perfect ones, though I doubt that will make a difference in terms of the functionality of this item.