Korsteel Soft Rubber Mouth Gag BitWe love the Korsteel Soft Rubber Mouth Gag Bit because the rubber covered mouthpiece is softer and provides an alternative taste to steel or copper. Gag bit The gag action provides leverage and poll pressure to the horse Rubber mouthpiece offers a warmer and softer option compared to stainless steel The thicker mouthpiece is softer on the corners and the bars of the mouthpiece Pressure created by the reins is spread over a larger surface area Soft