characteristic: Provide high-quality products, innovative designs, and thoughtful customer service. Rotator design: The surface of the Roman digital rotator ring is engraved with Roman numerals. Wearing the digital rotator ring, you are the bravest soldier! Quality and beauty: Made of high-quality stainless steel, it is a sturdy and durable health material, and anxiety rings will not rust or fade. 180 day warranty: 180 day warranty service is provided. Include all manufacturing defects and dimensions. Industry's most comprehensive 180 day warrantySpecifications:Commodity material: 316L titanium steelSize and specification: 8mm * 2.5mm Weight: about 8.5gProduct packaging: independent OPP bag