Zero stars, when I first opened the box which didn't arrive on time and inspected the staples I wasn't impressed and was pretty sure that I could squeeze them in half hands. I started my project by attaching all the brackets to create a square frame and started threshing. The brackets quickly lost their hold. I then just used a clamp to nail the pieces (small 2x4 halves, each of which I sawed to maybe an inch square and 12 inches long) into an "L". I started driving a nail the impact of which broke my staple in half, I looked at the halves of the staple to make sure my hammer didn't hit them and didn't find any fraying. These are very cheap and very fragile clips and I will be returning them and buying branded clips from the store.
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