THE BEST TRAINING aid to stop you from coming over the top and slicing your ball!.By placing an alignment stick over the centre of your ball it stops you from being able to swing through on a path that is outside of the ball to target line without hitting the rod.The only draw back is that you have to also take the club away on the inside which isn’t usually the desired method .I think if you’re struggling with a slice tho then this is definitely going to help and you can use it with driver, iro