Specification: Name:360 Rotatable Cup Holder Cup holder height: 15cm/5 Diameter can be opened: 6-8cm/2 Clamp: 5cm/1 Applicable pipe diameter: 1/0, helps kettles with a diameter of less than 8cm Type:carry holder case;baby carriage accessories;baby cart organizer; little one bottle holder Feature: 1,The bottle cage is appropriate for all types of strollers, umbrellas, strollers, strollers, kid's tricycles, bicycles and other units The clip of the cup holder could be clipped to the metal tube of the stroller body 2,Lock is rotatable for 360-degree perspective adjustment, the rotating rim lock matches all horizontal tube or inclined tube parts to make sure that the major body of the rim lock face upwards for a much wider range three be adjusted to any attitude with one button be rotated 360 degrees to function with none instruments The video explains and displays the use of the product,please consult with