I was in Walmart this morning and thought I'd pick up a Supertech MP7317 (oversize for the Mazda CX-30). When I checked to make sure somebody didn't put an ST in the box I noticed the ADBV was black not the usual blue silicone one. Since most people feel the only difference bewteen the ST and the MP is the silicone ADBV I ended up buying the ST6607. I know some people think it can still be silicone even if it's black I wasn't going to take a chance.