Features: 1.Sensitive Induction: Smart chip and thickened premium copper wire make the RFID key fobs have sensitive induction, convenient and practical. 2.Features: Key fob are compact and lightweight, easy to carry and store, just close to the induction area to open the door. 3.Fully Equipped: Sufficient quantity to meet your daily needs, you no longer have to worry about old or damaged. 4.Safe ABS: RFID proximity key fob are made of safe ABS material, environmentally friendly, waterproof, fall resistant, sturdy and durable. 5.Application: Suitable for community access control, time and attendance, parking, etc, bringing you a reliable use experience. Specification: Item Type: RFID Fob_x000D_ Material: ABS_x000D_ Product Size: Approx: 28x35mm/1.1x1.37in_x000D_ Frequency: 125KHz_x000D_ Erase: Do not erase PackageList: 100 x_x000D_ _x000D_ RFIDFob Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding._x000D_ 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.