RFID PVC Key Card For Hotels - Made from high-quality PVC material, this RFID key card is waterproof, durable, and resistant to bending, ensuring long-lasting performance in daily use. Standard size in CREDIT CARD SIZE (3.37" x 2.13" x 0.033"), the key card features an enhanced internal coil and a high-frequency chip, delivers fast recognition, stable read/write performance, and reliable data transmission. As a passive (battery-free) card, it offers convenient, maintenance-free operation. With a memory capacity of 1K bits, a read/write time of just 1 millisecond, and Compatible with OLDER Saflok, Onity, Dormakaba, ILCO, Miwa, and Securelox lock systems. Printed in the USA. Does not work with Beline, Betech, Lock Choice or VING/Assa Abloy systems. THESE ARE NOT NEW ULC chip cards. NOT MAGNETIC STRIPE KEY CARDS.