I work with a friend (she rides too) in Frankfurt alot, I'll check with her and get back to you. For bringing tack back in (importing) be prepared for taxes and duties. Use a good shipping agent for residential delivery here in the states. There is also the web site by the cenuses bureau that you can check for your harmonized tariff code . After having the the HTS number you would be able to look at what the duties and taxes will be (percentage wise) for the item you are importing.
The wind of heaven is that which blows between a horse's ears.
~ Arabian proverb