This is one of the spacers i ordered for my 280. I was happy with the workmanship, but didn't come with any lug nuts to bolt to the hub with...this was not a problem for the rear being 30mm...they were thick enough to use a 16mm high tapered lug nut...the fronts were a 20mm and needed to be 2mm or more shorter. I looked and looked for something to work but ended up machining down a few 16mm to fit...The place I ordered them from was kinda slow to help me, they claimed they had nuts that would work but after a couple weeks of emailing between each other took action....I got these spacers because i thought it would help a wheel wobble i had, ended up being a bad tire...but it makes me feel better to have these than a cheap autozone floating spacer.