Gearlock MS100 from Spigen is a holder mounted to the stem or handlebar bracket, it is ultra-light thanks to the use of carbon glass and very modest, so it does not destroy the aerodynamics of our bike. The set also includes Gearlock AU100 , a universal adapter that can be used with any mobile device - thanks to the use of double-sided 3M adhesive tape from the VHB (Very High Bond) series with high bonding strength and resistance to high temperatures, it can be glued to any smartphone or even a case. Check out what GearLock is: https://youtu.be/Xja6-3zi1Qc Check out how to mount MS100: https://youtu.be/UdMwL39R81U Check out how to mount the AU100: https://youtu.be/R5GjmfG7Erw PRODUCT FEATURES: - 100% Original - Packed in original packaging - Integral part of the Gearlock system - Bicycle application - Mounted to the bike's handlebar bracket - Ultra light - Easy to assemble and disassemble THE SET INCLUDES: 1 x Spigen Gearlock MS100 Holder 1 x Spigen Gearlock AU100 Adapter