Ring Type: Butted Rings. Made from: 16 gauge Aluminum Rings (Anodized Treated). X-Small Size (Chest Dia : 35", Length From Shoulders : 22", Sleeves 8") (Best Fit For Parson Chest 26’’ to 29‘’). Small Size (Chest Dia : 40", Length From Shoulders : 24", Sleeves 10") (Best Fit For Parson Chest 30’’ to 34‘’).