These valve stem extenders are a game-changer! Automotive maintenance has never been easier. They are the perfect length for my 3-inch dually RV wheels .Through trial and error I found that these extenders are durable and hold up to daily use. The pros of this product are its simplicity and functionality. The only con is that they are a bit pricey, but the quality justifies the cost. i highly recommend this product to anyone looking for a reliable way to extend their valve stems..