I am writing this because I have just purchased a 2nd set of OEX 1324's to replace the previously clocked 120,000 miles on my '08 Highlander. Now that the mileage is up to 191,000 miles and only 1/8 inch left, it's time to get ready for winter. 1/8th is a good thickness to consider replacing as not all sides wear evenly. They are smooth, quiet and dust-free. Reliable around town and in the mountains of Colorado. Very good value for money Revain.