Steiner Optics H-Series 30mm Low 0.85-Inch Lightweight Scope RingsSteiner Rings are the foundation of a precision shooting systemdesigned and engineered to ensure perfect optical alignment and shot after shot accuracy. The H Series Rings feature a sleek, minimalist design and rugged, lightweight constructionideal for your favorite hunting rifle or precision build. Low 0. 85 Inch Height Option Optimized for a lower optic position, the 0. 85 inch ring height provides a tight, streamlined mount. Lightweight Aluminum