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

Bought for my bike and installed on arrival. The next day they found deflated tires, clamped them as tight as possible, and pumped them up to the desired pressure. The leak was checked with a soapy mixture and a significant leak was found through the extension. Don't try to return it, but don't try to use it either. I advise against buying this product.