I use WD-40 years in the automotive field. On the quality there is nothing to complain about. It creeps, lubricates and also dissolves stuck rusted screws. That it is not friendly to the skin, you should now have gotten around. The Smart Straw function I find handy. Man spraying conventionally or as needed simply fold the spray tube and spray targeted precisely, even in inaccessible places. No mess and little consumption. The prices, I compared. At Amazon 10 euros I paid for 500ml. Delivery was free. Detlev Louis calls currently 10,99 but for 400ml excl. Delivery fee.
