This is not your average exterior detail. Smart Tire Pressure Caps have a color indicator that signalizes you if your tires' pressure is good, low, or bad. They fit all the tires so that you can get one set for the family car and one for your bike or bicycle. Now it takes just one moment to check your tire pressure ...
As a complete beginner, this book will give you a lot of instructions and explanations about possible problems and mistakes. You also get some beautiful patterns to test out. Master your skills.