Great tire pressure monitoring tool. The numbers and lines are large enough to be easy to read. Sturdy metal construction. I'm sure it will last for many years. It's a bit more expensive than pencil or digital gauges, but everyone knows that analog PSI gauges are vastly superior to digital ones. It's just a great option if you're serious about your tires. I use it in my car and motorbikes as it's impossible to play with only 2 wheels in contact with the ground.