[closed-loop design] comes with 4 straps, three of which can be closed with the mounting position of the bike cup holder, which allows the bag to be securely attached to the handlebars or top tube. The drawstring keeps the mug securely in the mug bag and won't fall off on the bumpy road. [Wide Range of Application Scenarios] The bike cup holder is flexible to fit dozens of bike styles or sizes, so you can install it anywhere on the handlebar. It is not only suitable for cruisers, mountain bikes, road bikes, but also for scooters, wheelchairs, walkers and all places with handles. [Large Capacity] Most cups and water bottles can be perfectly placed in this bottle bag, such as sports bottle, stainless steel bottle, coffee mug, beer, soft drink. There is a front mesh pocket where you can put your phone, sunglasses or keys for easy access. [high-quality materials] the use of high-quality materials makes it lightweight and durable. The bag contains a layer of insulation that will keep your drink cool in the summer or your coffee warm in the winter while on an excursion. [easy installation] You will always find a good place to install this mount firmly on the handlebar. It comes with 4 adjustable velcro straps, so just loop the velcro strap over the cup holder and secure it to the handlebars. No tools required.