Review on Dsycar 6 Pack Gold Metal Valve Stem Extenders - 45°, 90°, 135° - Universal Extensions for Car, Motorcycle, Bike, and Truck by John Roberts

These extensions mount to the front tires of a Class A motorhome and allow the use of a drill chuck/gauge. They've been on the car for three weeks and the tires seem to be holding the pressure. The only problem with them was that the gasket in one of the 45 degree expanders was not installed properly. Luckily I checked the extensions, saw the problem and was able to straighten the gasket and it seems to be working. It seems to me that the manufacturer has a quality control issue resulting in a significant amount of rejects, so purchasing this item is a bit risky. You may or may not get a good set. The company uses customers for quality control and hopes that most of them will not return defective goods. I would prefer and be willing to pay more for a 5 star product that is virtually flawless.