Press the clamping arms on both sides to firmly lock the mobile phone,will not fall out in any situation while driving.Cup holder phone holder with adjustable base has been deepened for greater stability.Just insert the cup holder phone mount into the original car cup holder and rotate the base until it is firm. The upper phone holder can be rotated 360 degrees and can be adjusted to suit your position.The phone holder for car Fits All Smartphones.The center console car cup holder could contain Multiple types and sizes bottles,fit in 3.4 - 3.8 inch bottle, which could adapt the famous-brands bottles or cups from 18-40 oz.Our phone holder for car fit most car cup holders, but car's cup holder design varies greatly, may not be compatible with certain styles of cup holders.