Magma Single Horizontal Round Rail Mount 7/8" or 1" #T10-380. Condition is New. Shipped with USPS Ground Advantage. Please make sure to double check that the pictures show the item you want.  Sometimes there's a mistake in the listing, but the pictures are always correct.  I consider my pictures to be the main part of the description.  What is pictured is exactly what you will be receiving in most cases.  Thank You!