• KeySplint Soft bottles must have an RFID card to work with the Einstein 3D printer • KeySplint Soft bottles are packaged with the RFID card included when supplied through Desktop Health • The $50 RFID card (SKU # ACC-00-5015) is only required for customers that do not have an RFID card and have purchased the KeySplint Soft material through a third party supplier and would like to use it on the Einstein 3D printer