They fit perfectly with the notches of my sf-xf9931 power rack and are as sturdy as one would expect for it being detachable. I wear them until theyre completely worn out. Its a sandal thats not truly a sandal, exposing the heel, the top of the foot, ending with a peep toe that shows only 3 toenails. This shoes are pretty cheap quality. The different colors are also great also for differentiating between other family members AirPods. This dress is a jaw dropper! This is so much better so now you might as well stop checking out the others. - Conversations are distinct and easy to hear. That took awhile to clear. You will not regret buying this bike rack.