Minoura SmartPhone handlebar mounted holder. Two sizes: Handle diameter smaller (22.2, 25.4, 28.6) or Larger (27.2, 31.8, 35) -Adaptable with iPhone 6 plus -Universal and adjustable fit with a recommended phone dimension of 55-85mm wide and 6-18mm thickness -Pushing the ratchet wings grips the phone tightly and to release the phone, just pull the small red lever underneath the body -Front and rear holders secure the phone and keeps steady even while going downhill -Fully adjustable height and ability to increase width with two types of nail wings included -Phone angle can be angled 90 degrees without any tools