Review on 🚸 Stay Alert with Zone Tech Warning Student Driver Vehicle Bumper Magnet - 3-Pack Reflective Safety Sign Magnet for New Drivers by Chad Siofele

These magnets work great! They hold up well on a semi-clean car (we just dusted the car off first). No problem that they neither stick nor wobble up to a speed of 100 km/h. My 16 year old daughter is a nervous novice driver and when other drivers see a magnet they reverse or change lanes to avoid it, which I find incredible. Other drivers seem to be more tolerant of a driver driving slowly when they know she's a new driver, rather than just texting her cell phone and not paying attention. (like most slow drivers these days)