Usage Tips:Specifications:Material: PVCColor: BlackHeight: 14cmDiameter (Can Open): 6 - 8 cmClamping Opening Size: 4 - 5 cmFeatures:1.Made of material, tougher and more durable.2.The clamping opening can snap onto the steel tube of the stroller.3.360 degree rotation design, can adjust to any angle you want.4.Easy to install and take apart, will not spend you much time.5.The clamp ensure the cup or bottle security.6.Multifunctional cup holder, can be used in bicycle, mountain bike, baby stroller and others, and place various sports bottle and drink bottle.Package Include:1 x Baby Milk Bottle HolderNotice1. Due to the different colours displayed by different computers, the colours of the actual items may be slightly different from the above images.2. Please allow 0.5-1 cm to be different due to manual measurement. Thank you for your understanding.