Reliancer 2PC Rubber Traffic Speed Bumps w/ 2 Channel Heavy Duty Modular Driveway Speed Bump Black Yellow Cable Protector Ramp for Garage Loading Dock Parking Lot Entrances Exits for SUV Truck RV Fork

These speed bumps are perfect to clear the spoilers on our 2 sports cars. They had a strong odor when they arrived, but it took 3-4 weeks before it wasn't noticeable any longer. Size works great with 2 speed bumps butted together for each car. I would definitely recommend these for any vehicles that can't use the 3 1/2" - 4" stops.

Substantially designed and created with longevity in mind

We bought these for our daycare parking lot to slow the traffic.

Ordered 2 sets for the condo I manage. Tried laying them down without fastening but they did shift around. I've since secured them with expansion bolts and seem to be fine. Definitely effective for what I needed as people just aren't as cautious as they should be. I'd also like to mention customer service was exceptional. There were some bolts missing in my first package and Ciel got this taken care of right away. Also stayed in touch to make sure everything was ok.

Update: 5/18/22 The smell never went away even a year later. I finally went and had my car professionally cleaned and o-zoned. $1000 later the smell is finally gone. ---------------------------------------------------------------------------------------------- Update: 10/14/2021 My car still stinks of these even though it's been several months since I returned them. I ended up having to pay a large shipping fee to get them returned. This has been my worst experience with anything I have ever purchased. ---------------------------------------- I bought these for a live webcast we were producing. I read about the smell and assumed I would just leave them outside in the sun for a couple days to get the smell out. I was wrong. Like other reviewers mention, that didn't work. I then transported them in my SUV with a moving blanket in between them and my SUV interior. The whole car stinks like toxic fumes now. I took the moving blanket out and washed it twice and it still stinks. My car without it in there wreaks. I can barely drive it now for more than 15 minutes without getting a bad headache and so have to drive with all the windows down. I drove around for 4 hours so far with the windows down to try to air out the car. It hasn't worked. I have these now back out in the sun and they still stink. So bad that I can smell them in the house even though they are 50 feet from the house in the yard. This is crazy how bad it is. I don't recommend these. I might have to spend a good amount of money just to get my car professionally cleaned out to get the smell out. And again, they didn't even touch the interior of my car!