I installed these brakes on 12/3/2016. By June 22, 2017, they were completely used up. I only drive 10 miles to and from work in Raleigh, NC, which is pretty flat. The brakes and rotors were installed on a 2008 Dodge Nitro mid-size SUV. I would not recommend this product as this lifespan is unusually short. See attached photos. I've never seen brakes fall down onto a metal support. That's very unsafe.