The weight and strength of this is fine for what it is, a simple basic lock. But the problem is that I can easily open the combo lock with my eyes closed if you feel the lock clicks. Takes me about 20 seconds max to do this. I was going to return the item but I'd already opened it and felt bad for the retailer/didn't want the hassle of arguing for my money back. My view is that these are not very good combination lock mechanisms (very cheap) and I've basically wasted £20 on it. Never leave reviews for stuff but doing this in the hope others don't bother!