The sweet iron and copper combination in this tom thumb bit help to promote salivation and encourage softening.
The cheeks give this bit a lever action.
The raised copper ribs can help to prevent the horse taking too much of a hold.
Mouthpiece thickness: 14mm.
Cheek height: 140mm.
Sweet iron mouthpieces are designed to oxidize to produce a sweet taste which helps with mouthing.
The addition of copper to the mouth ensures the horse will not take up too much of a contact, ideal for horses that can take a hold.
Stainless steel is used for the cheeks due to it being durable, easy to clean and resistance to rust.