The phrase "to be exclusive" means to limit access or participation, especially in a way that is intended to make something more desirable. Full definition
Other safety features are the latch anchor system which is exclusive for the crew cab versions. (thesupercars.org)
They might think about which decisions are left to students now, which are the exclusive domain of adults, and what is actually done in partnership with students? (soundout.org)
The listing is exclusive with the listing agent for the auction duration, which is about two weeks, the company says. (remonline.com)