This item is untested by us and came from a county's old surplus items. We offer a 30 return under ONE condition.That condition is the units screws can not be removed, we placed 4 color drops over 4 screws. This item is in the category "eBay Motors\Parts & Accessories\Aviation Parts & Accessories\Parts". The seller is "passe4tunes" and is located in this country: US. This item can be shipped to United States, Canada.