Handlebar water holder with 4 detachable buckle straps, tool free installation, no drilling required. Adjustable shoulder straps and 9-point mounting suitable for a wide range of bikes and can be securely attached to handlebars or tubes, as as stroller and UTV stroller . Insulated Foil Equipped --- This handlebar bag comes with a foil inner layer that helps keep drinks cold in summer and coffee warm in winter. The sturdy outer shell bottom and padded oxford fabric of this cup bag help hold and protect the cup or during the , making it perfect for long outdoor cycling trips. OPENING AND QUICK ACCESS---This bike bag fits bottles or cups up to 3.5inch in diameter and fits most children's baby bottles, beverage and coffee mugs, stainless steel bottles, glasses and sports bottles. The top drawstring closure helps stabilize the while also allowing quick flannel opening. Phone Storage Bag and Shoulder Strap--- Besides the main water pocket, there is also a side pocket measuring 4.7 x 3.4 inches (about 11.9 x 8.6 cm), suitable for storing energy , trash, mobile phones, such as /5/6 /6S, small tools, etc. The detachable shoulder strap becomes a shoulder carry bag to keep your pocket items safe and take with you after your . Attaches to the bike handlebar and stem, the top closure can be opened/closed quickly with one hand, bike water holder bag allows you access to water , snacks, base layers, phone etc quickly and . color:Black :Oxford cloth Package Contents: 1 x bicycle cup holder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.