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Cup Size Adjustable: This bicycle cup holder is compatible with most convenience store cups, such as 7-Eleven, Lawson, and Family Mart. Easy to install and remove without any tools. Please make sure to check the diameter of your bicycle handlebar before purchasing. Also, this product is for cups only, so it is not compatible with plastic bottles. For plastic bottles, please use our own Pet Cage Holder (sold separately).

From the Manufacturer

The adjustable cup size design allows you to hold almost any convenience store or coffee cup with a coffee chain.

It can be used with a maximum diameter of about 9.8 inches (250 mm), so you can set it up without any problems even with Starbucks largest size V (Venty).

No tools required. No tools required to attach to handlebars. Once you tuck it into the handlebars, simply tighten the screws by hand. It is also easy to remove.	Easy to put on and take off. Handlebar mount adapter and cup holder insert for easy separation.	Can also be used as a cup sleeve. If you remove the holder to use, it becomes a single cup sleeve, so you can easily carry it with hot beverages.