Product Name: Mushroom Series Standard Set Ring Picatinny Weaver Riflescope Mount Ring Model NO.: SR14 Structure: Standard Set Ring Material: Aluminium Custom Brand: Available Fit for Rail: Picatinny / Weaver Color: Black Available Materials: 6061-T6, 7075-T6 Aluminum, Steel, Zinc-2 or Alloy Trademark: Nutrek Transport Package: Clamshell with Info Card / Gift Box Specification: STEEL Origin: China Product Description NUTREK manufacturers complete specs of Scope Rings that pairs with most optics - with different models fit for the 1-inch tube, 30mm tube, 34mm tube, etc, at different saddle heights that accept close range 24mm aperture to 56 big size aperture for long-range and low light condition.NUTREK scope rings are constructed with meticulous attention to accuracy, with the strictest requirement for concentricity and tolerance. For varied requirements, we're able to manufacture scope rings in different materials including STEEL, 6061-T6 or 7075-T6 Aluminum, Zinc-2 Alloy, etc.SR14 Set Ring - StandardITEM#TUBE DIA.SADDLE HEIGHT (mm)base LENGTH (mm)SR14INH1 inch28.388SR1430H30mm26SR1434H34mm24Enjo Sports IncPlease contact us for more product information.OEMor ODM service are welcome, we have a professional design team at your service.Web: www.taband.com.cn www.borekare.com www.nutrekoptics.comAdd: #17-19, FL. 5, Building 5, No.25 Jingfu Rd., Qingyuan, Guangdong, 511518 China