This listing is for Rexton 2 button replacement remote key shell for models: Ssangyong, Mahindra with 2 buttons remote Empty key shell case, No electronic board or battery inside INSTRUCTION FOR INSTALLING OR REPLACING KEY SHELL: 1) Open the remote control body with a screwdriver 2) Remove the remote body from the case 3) Remove the transponder chip from the other side of the case. Be careful that you do not damage the immobilizer chip. 4) Install the chip and remote body onto the new remote case the same way. 5) For cutting, visit your nearest locksmith. He will just charge you for the key cutting cost.