1.Full ProtectionThis keychain case has 360 full coverage, effectively preventing water and dust, scratches, wear and cracks, shockproof and drop-proof, with excellent protective performance. Full fit, firm and tight, achieving all-round protection from front to back, left and right 2.Signal Not AffectedProtects your keychain in all directions, but does not affect the long-distance connection between your car and your key. 3. [High Quality] Zinc alloy is strong, wear-resistant, durable, does not fade, does not block signals, resists oxidation, feels comfortable, and is ultra-light. Zinc alloy shell is hard and strong, with strong impact resistance 4. [Compatibility] Applicable to Mercedes-Benz A, B, C, E, G, R, S, MClass, CLA, CLS, GLA, GLC, GLE, GLS, SLC, SL, GLK, GL, SLK, Viano , GT, SLS, ETC. 5.Before purchasingPlease check the size and shape of the key shell to determine whether it will fit your original car key. If you have any questions please contact us Specification Material: zinc alloy Weight: 100 g Color: carbon fiber color Package included 1* Key protective case 1* Leather key chain Compatible models are suitable for the following Mercedes-Benz smart keys (for reference only): Class A ------ 2013-2018 Class B ------ 2011-2019 Class C ------ 2009-2018 Class E ------ 2009-2016 Class G---- -- 2009-2018 M Class --- --- 2006-2015 R Class ------ 2007-2017 S Class ------ 2010-2017 CLA ----------- --- 2014-2019 CLS - --- ---------- 2008-2017 GL --------------- 2008-2015 GT ------- ------- 2015-2018 GLK - --- ---------- 2008-2015 GLA --------------- 2014-2019 GLC --- -------- 2016-2019 GLE ------ --- -- 2015-2019 GLS --------------- 2016-2018 SL ------ --------- 2010-2017 SLC -------- --- 2016-2018 SLK -------------- 2008-2015 SLS ---- ------- 2011-2014 Viano--------- 2010-2015 Note 1. Please compare or check the picture with your key before purchasing