They are really not a good quality for the money. These clips have very poor plastics and it breaks easily. I would rather spend a little extra on something if I know its going to last.
Breaking easily, If added a stell strip around then it will be fine
Good secure cheap and cheerful
Cheap price and stylish
These are great. They are feather light and highly visible. I use them every day.
A necessary accessory if wearing loose trousers
does the job, visible to other road users
These things stop oil getting on my jeans from the chain and have a reflective strip on them to provide motorists with another thing to aim at.