KeylessOption Keyless Entry Remote Fob Emergency Insert Key Uncut Blade Blank No Chip for Nissan Infiniti Smart Replacement emergency key that slides into the bottom of smart/prox keys. No transponder chips included. This part is compatible with the following vehicles This key needs to be cut prior to using. No programming is required! See product description for a complete list of vehicles this part is compatible with. Replaces CWTWBU735, CWTWBU624, KR55WK49622, CWTWBU619, KR55WK48903, CWTWBU618,KBRTN001 This is a replacement part to match the original in form and function