Bombers Pelham CoscojeroThe Coscojero has a high ported curved mouthpiece with a central roller filling the port. This roller applies tongue, bar and poll pressure which makes it an effective polo bit. This is a very good bit for stronger horses. The mouth piece is made from blue sweet iron, because it: oxidizes easily encourages salivation helps bit acceptance is warm and sweet The Polo Pelham is supplied with stubby curb hooks and a flat link polo curb chain.