Features: 1.Suitable for all kinds of baby strollers, children's tricycles, bicycles and other models. 2.The grip of the cup holder can be clamped on the steel tube of the stroller frame. 3.The grip of this bottle cage can be adjusted at any angle of 360 degrees. 4.The rotating jaws can be adapted to either the horizontal tube or the inclined tube. 5.Can guarantee that the main body of the cup holder is facing up. Specification: Name:Water Bottle Cage Holder Clamp Color:Black Materials:PVC plastic Size:14*7cm/5.5*2.8in Chuck Size:4cm/1.6in Package: 2 x Bottle Cage Holder 2 x Clamp (This product does not include water bottles and carts.) Note: Due to the manual measurement,there might be some error.