The clamp device is equipped with a non-slip grip that secures the cup holder to the handlebar of the pushchair to walk on the pavement or other roads, there are 4 fixed silicone splinters on the cup holder that attach the bottle to the cup holder without worrying about the cup falling off. It is easy to assemble and disassemble. It is safe to install and is very easy to install. You do not need any tools. Flexible and fits most types of poles, such as cross rod, slanted rod or vertical bar. When you go shopping or picnic with your child, this trolley drink holder will reduce the strain on your hands, but you can grab the coffee cup or bottle in the drink holder at any time. You can also put the phone on the cup holder.