100%  item<br />made of high quality aluminum<br />useful for bikes which have no holder or inadequate for a frame holder<br />convenient to fetch drinka bottle holder<br />simple and practical designsmall size and light weight<br />sturdy structure，prevent deformation damage<br />strongly-gripped hinge，fix the holder tightly<br />suitable for varied types of bikes，including mountain bike and folding bike<br />color: black<br />size: 15x8x3cm<br />package included:<br /><br />1 x bottle holderno screws included