FIYYIA 12PCS T5577 RFID keyfobs proximity ID cards buckles,125KHz RFID rewritable copy duplicate access ID keyfobs. 1.125KHz RFID writable and rewritable T5577 copy card keyfobs,can be written 100,000 times. 2.T5577 writable key tags are widely applied to duplicate a lot of 125KHz type cards, such as EM4100，TK4100,HT4168. 3.T5577 ID keyfob size: 1.2IN * 1.5IN * 0.1IN, there are multiple color options available, including blue, red, yellow, green, and mixed colors. 4.T5577 copy card key fobs are applicable for a lot of locations,such as access control,company attendance,elevator etc.