Customized Writable Waterproof Passive NFC Bracelet RFID Silicone Wristband. Customizable Color Options: Available in blue, red, white, black, green, yellow, orange, gray, pink, or fully customized colors. High Durability Material: Made of 100% silicone, non-toxic, elastic, moisture-proof, and shockproof for long service life. IP68 Waterproof Rating: Fully waterproof and dustproof, suitable for swimming pools, washing, and sauna environments. High Writing Cycle: Supports up to 100,000 writing cycles for reliable data storage and reuse. Multi-Protocol Chip Support: Compatible with LF (125KHz), HF (13.56MHz), and UHF (860MHz-960MHz) chips. Comprehensive Certifications: Certified by FCC, CCC, CE, ISO, and RoHS standards for global compliance. Silk Printing Customization: Allows for custom logo printing via silk screen process for branding purposes.