The loose ring cheek has greater movement than a fixed cheek which can discourage fixing and leaning. The loose brass alloy discs in the centre of the bit can help to soothe a fussy tongued horse. Mouthpiece thickness: 15mm. Cheek height: 65mm. Blue sweet iron mouthpieces oxidise easily to create warmth with a sweet taste which helps with bit acceptance and encourages salivation. Please note the blue colour will fade with use. The addition of brass alloy inserts produces a warm, more palatable bit. Stainless steel is used for the cheeks due to it being durable, easy to clean and resistance to rust.