Really wanted to leave a good review on this product. I liked how the inflation hose was screwed onto the tire valve. I also like the automatic switch-off function. Unfortunately, like many products made in China these days, it is of poor quality. The ON-OFF switch stopped working after inflating only one tire. Now it is stuck in the "ON" position and does not press, rendering the device inoperable. Other negatives are the LED backlight, which was ok but not very bright. Also, the tube felt a bit more fragile than I've seen with other inflators. Unfortunately I would not recommend this product until they implement better quality control.