I am happy with the purchase. The Tungsten block was cheaper than others on the market but it does not reflect its quality or its ability to do exactly what it was intended to do. I am a detailer buffer that works for a repair shop that has a particular Donald Bradman in our paint shop hitting a few runs regularly. This was very inconvenient before getting the Tungsten block, requiring lots of time, patience and a few extra tricks to correct. Now it's a welcome challenge that takes only a few minutes to work my magic. It's a highly valued tool and I highly recommend this product, for the price it can't be beaten. Thanks