Brompton 3M Mount for Mobile Phone ReplacementBrompton 3M Mount for Mobile Phone Replacement New variant old instruction photos. Brompton 3M Mount for Mobile Phone Replacement This is a replacement when you have a new or second phone for the Brompton Phone holder which you can find here Individual Sticky Pad with 3M Tape for Brompton Bike Mount Holder for smartphones, GPS Devices, and more. ONLY use the 3M Sticky Pad Clip with a case that has a smooth hardback so that the 3M tape can stick to