Tyre maintenance products including tyre pressure gauge and tyre depth gauge tools. Tyre maintenance is important for safe driving and to avoid costly fines. The tyre pressure on your car needs to be the correct psi as recommended in your manual. This helps to maintain grip and also helps to get more miles per gallon when driving. Adequate tread depth is a legal requirement when driving, and helps to keep your car on the road and keep you driving safely even when conditions are wet or icy. Use a digital tyre pressure gauge to monitor psi and a tyre tread depth gauge to see if your tyres are too bald.