Neue Schule Waterford Balding Running Cheek Gag 8029BG Cat_Novelty Gifts It attaches via hook and It attaches via hook and loop fastenings for easy removal The device is compatible with Android Neue Schule designed this bit for use with two reins to enable to rider to differentiate between the snaffle action and the running cheek action which provides poll pressure The Neue Schule Waterford Balding Running Cheek Gag is the ideal bit choice for very strong horses that forceably lean on the bit and hang on the rider's reins in evasion the combination of this mouthpiece and the action of the running cheeks makes it virtually impossible for the horse to grab and hang onto the bit