[b]Greta Titanium Mouthpiece goes with the Otto combination bit. When you order a mouthpiece for your combination bit, please select a size that's 1cm larger. [u]Please understand:[/u] We make the mouthpieces just for you once you order. So, you can't return or exchange them. We create them from our standard loose ring bits to fit your needs.[/b] This lets us give you a variety of mouthpiece options and sizes for your custom bit! [i]NOTE: Greta can be used in two ways: Either with [b]tongue relief[/b] or with [b]bar relief[/b]. For [b][u]tongue[/u][/b] reliefIf you would describe your horse as the following:[/i] * Inconsistent in the contact. * Pulls away or up when you take up the reins. * Attempts to put their tongue over the bit. * Fussy mouthed. [i]For [b][u]bar[/u][/b] relief- Turn the bit upside down. If you would describe your horse as the following:[/i] * Inconsistent in the contact. * Stiff or rigid to ride. * Bites on the bit, attempts to pull it b