JT International Tough 1 Miniature Wonder Bit 4"The Wonder Bit is an all purpose versatile gag bit with a single jointed mouthpiece. With rein use, the sliding mouthpiece moves forward to apply increased poll, palate, and bar pressure. This action can help to promote shoulder elevation, lateral flexion, and rate. Stainless steel. The addition of a curb chain to this bit can help increase speed, rating, and stop. Features: Stainless steel Single jointed snaffle Sliding cheeks create a gag action