Custom-sized RFID epoxy key tags with durable 13.56MHz frequency for seamless ISO 14443A/15693 compatibility. High-precision laser engraving ensures crisp custom logos/text with scratch-resistant epoxy coating. Ideal for access control, inventory management, and contactless payment systems. Bulk pricing available for corporate branding or large-scale deployment. Waterproof construction withstands daily wear with reinforced metal ring attachment. Supports NFC smartphone pairing for modern smart office solutions.