Very anatomical and mouth friendly. Thanks to the high-quality workmanship and the excellent material, very comfortable for the horses mouth. All components are shaped and machined by hand. All side pieces are made of high quality stainless steel. All mouthpieces are made of horse and allergy-friendly stainless steel combination. Extremely high corrosion resistance. Anatomically functional compatible. Thickness: 16 mm. Ring diameter: 50 mm. Size: 125, 135, 145 mm.