These Sweet Iron 3-Piece Training Bits with Copper Rings are made of only exceptional quality materials. When buying a Horse Training Bit from us we are confident that you will be satisfied with the product. The copper rings in this training bit will help with the horses salivation. The rest of the bit is also made of solid stainless steel which is very durable. As horse enthusiasts ourselves our number one priority is to offer our customers Training Bits which we believe are made to last and available at affordable prices.