Rubber reins giving, with a simple bit, the gag snaffle effect.
The reins attach to the 1st hole of each bit cheek pieces, nylon rope parts slide through the bit rings to create a gag effect.
In addition to regular reins, the “gag” action is soft but effective.
Those Precision gag reins save from buying a gag bit and cheek pieces and are very easy to put on and remove without taking off or modifying the bridle.