The color in the back is not even, especially on the left side of the belt, there are some spots that are lighter color than the rest of the belt. Measured with a ruler from inside toe to inside heel, they are exactly 9 inches long. The coating on the cable wore off on the first week of using it. I couldve figured it out but it wouldve taken me much longer to install. The 2009 Prius did get only 25 mpg when we started in the cold weather but got up to 37 mpg in Florida. La calidad era lo que esperado sin embargo el instructivo de armado no es muy claro y aparte viene en ingles. These two work perfectly I can open them up and hang clothes as they come out of dryer. I found a way around this. They are a lightweight and comfortable headset to wear for hours. Battery life is around 8 hours in long range mode, which allows me to walk anywhere in my 3 story house without loosing connectivity.