8 of 9 people found the following review helpful
Ball-End Hex Key Set 11pc Anti-Slip Extra-Long Metric,
This review is from: Sealey Anti-Slip XL Metric Ball-End Hex Key Set (11 Pieces) (DIY & Tools)
I agree. First time I used them, they stripped and went round, showing that the metal used is not strong Chrome Vanadium as it would suggest, but a bronzey soft alloy. Dont bother if you want them to actually undo a hex bolt as opposed to just looking pretty. Complete waste of time and money.