... and frequency 13.56MHz 3, Tough, waterproof, non-tear, non-stretch Specifications:The KD-WB04 HF Series Silicon RFID ... countries or regions. The wristband is tough, waterproof, non-tear, non-stretch and used for school, hospital, night clubs & bars ... centers, etc.Features:Silicone made, tough, waterproof, non-tear and non-stretchCustomized logo, color and other requirementsTwo diameter options: ...