Product Material: ABS plastic + metalHandlebar diameter: 1.52-4.3 cmCup holder diameter: 6.3-8.3 cmColour: BlackQuantity: 2 pcsPackage content: 2 pcs * Bicycle bottle holder1.High Quality: Made of high quality durable ABS plastic and metal parts, very durable. The non-slip clamp ensures that the bottle remains stable in the bottle holder trolley even on uneven roads. Designed to hold cups, cans and bottles.2. 360 degree rotation: The bottle cage bike can be rotated 360 degrees. It can be installed under the handlebars, under the seat, the down tube, the front fork and under the front tube. It can also be installed on the most popular models of strollers. It can be easily assembled without additional tools.3. Easy to use: The bicycle bottle cage can be assembled in a few seconds without any additional tools. Simply move the bicycle cup holder to the desired position and tighten the screws.4. Size extension: Our stylish bicycle bottle cage is suitable for almost all standard water bottles and drinking water bottles. The diameter of the cup holder is approx. 63-83 mm.5. Wide range of uses - reasonable design and cheap cup holder. You can place it almost anywhere on the bike: handlebars, highways, engine guards, or other locations. It is also suitable for most strollers, trolleys, bicycles and walking aids.