Shires Blue Sweet Iron Loose Ring with Lozenge BitWe love the Shires Blue Sweet Iron Loose Ring with Lozenge Bit of the durable materials and design. The loose ring allows more movement than a fixed cheek so that it may allow for the angle of the tongue. The brass alloy lozenge offers even pressure and encourages contact. Blue Sweet Iron Encourages better contact Offers even pressure Loose ring allows more movement Brass alloy lozenge Sizes: 4 1 2" 5" 5 1 2" **Due to the contagious nature of the