I am selling SWMBO's roof box for her, it is Genuine Renault Boutique, it was purchased with her Scenic from new. She still has the receipt. The roof box cost Â£500, the roof bars cost Â£200. I have no doubt the roof box could be attached to almost any roof bars using the internal roof bar clamps. It has only been used once, it has a few minor scuffs on the edges, one of the roof bars has scratches on the top from where it fell over, apart from that it is in mint condition.
It is held open with a pair of gas struts, and is closed via a strap by pulling the handle. The roof bars have a locking panels at each end, the roof box locks also, all keys present.