Used maybe twice on my bike and otherwise sat on a shelf in my office. My bike is 2016 R1200R and this Passenger backrest mounts onto the rear top plate of bike. Great product, very well made Stainless Steel and a durable leather-like material. Easy ON/OFF with 4 bolts. You can see their products at

Adjustable tilt. Won't rust.

I paid ~$400 for it, but it's pretty much brand new. It works excellent and looks cool, but I just never have a passenger. Hopefully $250 is a good deal.