This item does the job it's intended to do but is not as unobtrusive as expected. The ridge that seats on the top of the putter is shaped and not flexible so unless your putter handle has the same shape it will not seat well. If it had a flexible shoulder to slip over the putter handle it would get more star rating but alas no. The screw fixings that hold it in place have to be screwed through your putter grip, no problem if the device remains in place but due to the first issue (not seating) if you drop your putter into your bag as 99.9% of golfers do it will loosen in time rendering it useless and in need of replacement. To fit another successfully you will need a new putter grip! All in all a good idea but needs some refining please.