Embrace the new electronic entry system by equipping your property with Key Cards. If you further wish to keep up with the latest technology, buy the RFID Cards. RFID Cards work on a chip and induction loop with a transmitter, allowing access without touch, unlike other key cards in which physical sliding by the door lock is necessary. AGH Supply also offers Key Card Envelopes. Buy them for branding or printing important instructions. The Envelopes come with a thumb cut for ease of use. We have a double-sided, pre-saturated lock cleaner that safely removes all contaminants from the electronic reader heads. These are designed for safe, effective, and easy swipe cleaning.