1.Product Name: H7 S-ring 2.Product Type: OSRAM H7 adjustment sleeve 3.Material: SUS 430 4.Usage: OSRAM H7 PX26D lamp 5.Product Dimension: Height: 5.3+0.2mm Outer Diameter: 22.8-0.2mm Inner Diameter: 15.09±0.03mm Thickness of material: 0.3mm 6.Product Feature: Outgassing Test: passed. 7.Packaging Details: 16800 pcs/carton. Our company: Invitech is a company committed to the manufacture and development of Metal stamping parts. The products widely used in Auto, Electric appliance, Electronics ects...Through years of operation, we have established solid, long-term and cooperative relationships with clients from India, Korea also Europe by providing manufacturing services ranging from parts to complete appliances and have become a professional metal stamping parts supplier. FAQ: 1.Does this H7 adjustment sleeve match all types of H7 adaptor? No, it depends on the outer diameter of H7 adaptor. 2.Is the outer edge of this H7 adjustment sleeve flat? Yes, its important. 3.Is the product free of burr? Yes, our progressive stamping die guarantee the quality.