Review on 🚗 Wikkiv Car Air Rubber Hose Tire Inflator Hose - Self-Locking Tube for Standard Fine Thread 0.305" x 32TPI Air Compressor Pump - Compatible with EPAuto, AstroAI, JACO, DBPOWER, Mbrain, Audew by Centerfold Montague

I bought this to run a brake disc on my bike and check tire pressure, but it won't hold air unless hooked up to a compressor, which does nothing other than a hose extension and makes tire pressure unusable for checking. What good is an exhaust valve when the only way to check air pressure is to use a compressor with a built-in pressure gauge.