i had to remove the original leather. Even without the original leater the new cover was a little bit narrow in 2 points of the wheel and was not enough to cover the wheel perfertly. You can see that issue at the picture but is not very noticeable, you had to look close. Except that point all the wheel is perfect. No instructions, only chinese instruction with pictures. In any case I'm very happy. Is not real leather i think. The package contain the cover, 2 needles, one plastic piece to fit the cover, 2sided sticker to stick the cover to the wheel and a lot of red thread, and one "ring" to guard your finger when you are pressing the needle. Fast shipping to Spain. Easy to install but take about 4-8hours of work (with the wheel on the car) if you never use needle and thread.
Package arrived fast and the steering wheel cover fits nice. It was a 2 hours job to sew it together! The only dissapointment is that this is no real eather but PU-leather (polyurethan with leatherette print). But it looks nice. I hope it wil last because I don't want to do this every year ;)