
I thought they would be pretty strong metal but the first time I used them they broke in half! Didn't put so much pressure on him. Not very happy. I used to buy solid brass but it was heavier. It just isn't made for what I intended to use it for! Update September 5, 2018: The seller contacted me about my original 3 stars and asked why. I explained how a block broke on first use. The seller asked for a photo of the damage. I sent him one with the flaw and he promised the manufacturer would make a better part. That's why I gave another star. One was broken and the other seems to be working fine, but the seller was fantastic!

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