Loose rings offer a soft contact to the mouth. They allow a slight indirect contact compared to the fixed rings, which makes it easier to play in the fingers and limits excessive tension. Here, the 4 rings, by the play of the rings avoid fixed points: divides the support. This net consists of two rings that can move freely between the two rings connected to the barrel. The two free rings are attached to the uprights, the barrel rings are attached to the reins. The contact becomes more direct on the mouth and allows to release the tension on the neck.