Alloy master rings are designed for heavy duty lifting jobs. All of our master rings meet or exceed all OSHA regulations. Choose from Grade 80, Grade 100 and Grade 120 rings in a variety of shapes and sizes. Always make sure the grade and working load of your master ring match the requirements of your application. If you don't see exactly what you need, contact one of our product specialists at (888) 918-8150, or email@example.com, and we will be glad to find the part you are looking for.