Strauss Bicycle Bottle Holder with Mobile Holder, (Black) Bottle Holder: Upgraded grip - this bottle cage is upgraded clamp with a rubber pad Bottle Holder: Expanded size - this quick release bottle cage fits for most standard-sized water bottles. 2.5 inch - 3.3 inch bottle in diameter Bottle Holder: No tool needed - the clamp of the bottle cage is designed for easy to installation and remove, no tool needed Mobile Holder: Bike phone mount bracket stand cradle support for nearly all mobile cell phone Mobile Holder: bicycle phone holder size is adjustable to fit tubular handlebar sizes up to 30mm(1.2inches) Mobile Holder: Easily rotatable and adjustable: 360 degree rotating support holder