4PCS Car Door Open Warning Reflective Stickers, Night Visibility Auto Safety Prompt Decals, 3.6 Inch Anti-Collision Protective Strip Tape, Car Accessories Universal for All Cars (Red)

These do not stick well. Fall off & get lost.

These stickers are a must for anyone who parallel parks or finds themselves opening their car door into oncoming traffic regularly. Maybe Uber and Lyft drivers, pizza deliverers, and the like?The stickers themselves are substantial. Thick, very strong adhesive, and bright reflective quality.I got the blue because it looks coolest, hands down. Love em! Now no one will smash into my open car door ever again!

I got this product to enhance the safety of my vehicle at night. The product consists of a package of four identical stickers, each about 3.75 inches long. Be cautioned that the stickers show up in the pictures from a digital camera better than they do to the naked eye in the same light.I placed the sticker on the inside of my car door as noted in the product listing. The picture shows one of my vehicles at night in the light of an LED headlamp. As can be clearly seen in the picture, the black printing on the sticker significantly reduces its reflectivity. I can't imagine why the word "open" with arrows adds any value to this product, since passing drivers couldn't read it, and to anyone standing in front of the door it's obvious it is open -- and making those letters an opaque black instead of a reflective white makes the sticker vastly less effective for human observation. However the stickers still showed up fairly well in a digital camera, which might marginally reduce the chances of being plowed into by an autonomous vehicle at night.I was extremely disappointed with this product.