Leather is probably the best material for producing dog equipment. It is strong, soft and durable. It doesn't cause allergic reactions and is safe for your Doberman teeth.
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That's why bite tugs in this category are made of it. There are bite tugs with one or two handles that protect your hands from your Doberman bites. Leather bite pillows have three handles. Check the sets of bite tugs to save your money and get presents.