Steiner T-Series rings are the foundation of a precision shooting system. Designed and engineered to provide precise optical alignment and consistent accuracy. Made from an aluminum alloy, these scope mounting rings are designed to be lightweight and strong and are the perfect mounting solution for precision scopes with a 34mm tube. Backed by Steiner's Lifetime Heritage Warranty, you'll know that your rings are protected for the life of the product. Plus, you won't need your receipt, warranty card or original packaging. Steiner makes trusted optics for life's defining moments. No matter what you're looking at, we strive to improve your vision so that nothing escapes you.