Impressive SurfaceThe bicycle water bottle holders are approx. 35.1 g in size, 13.2 x 7 x 10 cm, lightweight and beautiful. This bike cup holder has 5 different gradients to choose from as you like. A strong weight load capacity and good quality, not fragile, it is worth it. Sturdy and durable: the lightweight water bottle holder is made of high quality plastic under vacuum coating process, durable, lightweight and not easy to fade. The rounded corners damage the mountain bike bottle holder, bike carrier or your hands. Easy installation: it takes less than 60 seconds to install this bicycle water bottle holder. Use an Allen key to attach the stainless steel screws to the bike carrier. Easy to install and remove, can be rotated 180 degrees. Includes mounting tool and two pairs of screws. IMPORTANT: Bike frames require threaded holes to mount the bottle holder. Universal fit: This bicycle water bottle holder fits perfectly for water bottles with a diameter of approx. 3" This mountain bike water bottle holder has no welds so it fits better on your water bottle. Safe and Easy to Hold Your Water BottleThe road bike bottle holder has five support points to keep your water bottle safe and you don't have to worry about it falling out during your ride.