
I've used these speed dial locks before and they're great when they actually work! I don't know what's up with Master Lock's quality control, but I've ordered two now and both were defective. It is not possible to open the locks with the original combination indicated on the packaging. Yes, I have followed all the instructions and online videos. I've read all the comments with tips and tricks on how to make combos work. I even took both locks to my uni along with instructions and over 40 people (from three classes) tried to pick them. Both are still stuck to the original packaging. The original combinations will NOT work. Looking at other comments on this product it seems that these locks are amazing. when they work. But a very large percentage of locks prove defective or fail shortly after purchase. So buyers beware.

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