Eggbutt Magenis An effective snaffle due to its edged mouthpiece. £31.95 imperial size: [Choose]5"5.1/2" Quantity: at £31.95 each Add To Basket An effective snaffle. Bit has squared off edges with rollers set inside the mouthpiece. Used to lighten or if a horse leans on the bit. Other similar mouthpieces are the Scorrie and the Stubben 2 in 1.