The card and combination are default empty command products. If testing read and write functions is required, use the replicator to read the complimentary label and then write it to a readable and writable card. Requires two 1.5V AAA batteries (not included). Compact size and lightweight (56g), convenient for portable use and on-site copying. The device can copy most common market cards including parking cards, access cards, switch cards, small button-type cards, and shaped cards. Cards can be reused; proximity cards can be used an unlimited number of times. Please note that product chips come with blank instructions by default. If writing is required, first read the 125 kHz device instruction, then write it to the corresponding card. The replicator has advanced features that enable reprogramming of certain one-time copy cards for multiple uses. Color: As shown. Material: Plastic. Package Contents: 1 x Handheld ID Copier, 6 x Black T5577 Buckles, 6 x T5577 Cards. Only the items listed are included; other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and actual item. Measurement error allowance is +/- 1-3 cm.