1 3 5 6 7 E90 E93 E92 M5 X3 X5 replacement for a key with broken buttons or worn key case. There is NO interior (remote/electronics/transponder chip)unit inside. Just cut the key blade,take the internal electronic(include immobilizer/transponder chip) from original remote and place to key shell,then you are ! The keyblade needs to be cut at qualified locksmith. Compatible with: For 1998-2005 3 5 + 7 Series For 1998-2005 X5 Z3 Z4 For 2001-2004 01 02 03 04 330 330i For 2001 2002 2003 2004 2005 X5 Z3 Z4 For 2001-2004 525 525i For 1998-2000 X5 Z3 Z4 For 2003-2005 3,5,7 SERIES For 2001-2004 3 SERIES For 1998-1999 3,5,7 SERIES For 1998-2000 325 325i 325ci + i ci xi For 2001-2004 325 325i For 325 330 318 525 530 540 E38 E39 E46 M5 X3 X5 E65 Product size: 9.1 * 3.8 * 1.5cm / 3.6 * 1.5 * 0.6in Product weight: . 19g / 0.7oz Material: Plastic Package list: 1 x Key Shell Note:Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.