# 257302 Martingale Stops Login to see price! Black Rubber. 1″ Slot. Category: Bridles - Curb Straps Related products # 15 Breaking Bridle. Single Rope Nose Login to see price! # 25706 Leather Curb, Flat Chain Login to see price! # 257301 Rein Stops Login to see price! # 25708 Rolled Center Curb Strap Login to see price!