Trust Inno Sense Dee Port Bit - MediumThe D ring cheekpiece consists of two rings that are shaped like a D. As the rings cannot move back and forth, this cheekpiece offers more stability but also lets the rein aids come through more directly. The D shape gives more side pressure (against the cheek), making steering easier. The Inno Sense Flexi Soft bits are made of elastic synthetic material and are very flexible. The bit features a flexible metal core. Because of the flexibility this is