Feature 1Sensitive: RFID key fob has sensitive induction, and the door will open as soon as you approach the sensing area, convenient and fast. 2Features: Small size, lightweight, easy to carry and store, sufficient number of RFID fobs making you no longer need to worry about loss or damage. 3Upgraded Design: Smart chip and thicker copper wire design give you an excellent using experience, professional manufacturing to meet your use needs. 4Safe ABS: ABS environmentally friendly material, safe and reliable, durable and fall resistant, not easy to wear and deformation. 5Application: Waterproof RFID proximity keys are suitable for community access control, time and attendance, and parking.SpecificationItem Type:RFIDKeyFobMaterial: ABSProduct Size: Approx: 25x35mm/0.98x1.37inFrequency: 125KHzErase: Do not erase .wang-edit-text{ font-family:'Arial' important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List100 x RFIDKeyFobNote1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.