"Happy Mouth" Double Jointed Loose Ring w/ Roller Mouth Bit Sale! from $39.99 Color Stainless Steel Size 4-1/2 5 5-1/2 5-3/4 6 Qty. OUT OF STOCK This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. The unique Apple scent encourages horses to accept the bit and the space age polymer provides for a gentler bit for a happier horse. Features pony-sized rings for size 4.5"