These work so much better than the standard bottle cages on most bikes. It holds snug, but not too snug. The best part is the side release…great if your triangle is small. You do have to access only with your right hand, but I’m fine with that. I’ll be getting more!Bought these for my new Trek! They are awesome! Fit perfectly in the spaces provided, one open to R one to L easy to get my water bottles out and hold everything very securely! We’ve been on some steep single tracks with lots of rocks and lots of bounce and no issues with bottles! Loved them so much bought another set for the hubs!These look good out of the box and once installed. However, they will not maintain their shape and your bottles will be able to shake loose and in fact I lost one a bottle during a race. Additionally, the color wears away and they will leave black marks all over your water bottles.This would be a great set of bottle cages, if one was right and one was left. With them both opening to the right you have to grab from the left on your seat tube and from your right on the down tube. Not ideal.These are easily bent out of shape and will not hold your water bottle securely unless you bend it back into shape now and then. Look for something better, plastic is a better material in this case. The thin aluminum just does not work well.Got the 2 cage package. Comes with 4 bolts and hex tool.The blue is a bit darker than what's shown on the product page. The material is thinner than expected, but that's what makes it great. Light weight and able to bend to the shape of the bottle. I would recommend it.Great price, I only needed one but now a have an extra for my wife's mountain bike.Loved my 2 for 1 cages...one for each bike