Protecting the outside of your car often comes down to the small, easy-to-miss spots: the door keyhole and the rear camera lens. Both are exposed to rain, dust, and scraping every time you drive. They fall under exterior protection accessories, but they protect completely different areas. One is a 20mm carbon-fiber-style sticker that covers the keyhole, and the other is a waterproof cover that shields the rear camera. Your choice should come down to which vulnerable spot matters more.
Quick Verdict
If your door keyhole keeps collecting grime or light scratches, go with the 20mm Carbon Fiber Car Lock Keyhole Sticker Protection Cover. It comes as a set of four adhesive-backed stickers for $7.98. If your rear camera image goes blurry in wet weather, opt for the Universal Car Rear Camera All-Weather Protective Cover at $10.99, which uses a waterproof self-adhesive shell to keep the lens clear.
Head-to-Head Comparison
| Feature | 20mm Carbon Fiber Keyhole Sticker | Universal Rear Camera All-Weather Cover |
|---|---|---|
| Listed price | $7.98 | $10.99 |
| Finish | Carbon-fiber look | White |
| Protects | Door keyhole | Rear camera |
| Contents | 4 stickers | Rear camera cover |
| Attachment | Self-adhesive backing | Self-adhesive |
| Fitment | Universal | Universal |
Where Each Product Wins
The keyhole sticker wins when you want to cover a small open hole and you'd like a few spares to use on multiple doors. The rear camera cover wins when weather protection is the top priority: its PVC build is made to block rainwater from pooling around the lens.
Product Notes
20mm Carbon Fiber Car Lock Keyhole Sticker Protection Cover
Having four stickers in the pack means you can cover multiple keyholes or reset one when it loses its grip. The 20mm size is made to match the typical keyhole opening, and the carbon-fiber look adds a subtle custom touch. The black color helps it blend in with common trim colors. Installation takes a minute: clean the keyhole, remove the backing, and press the sticker on. It's a dedicated keyhole cover, though, so it won't help with rear camera lenses or larger exterior openings. If your focus is the lock cylinder, this is the accessory to pick.
Universal Car Rear Camera All-Weather Protective Cover
This cover is formed from PVC and shaped to fit around the edges of the rear camera, which is what keeps rain from beading on the lens. It's self-adhesive, so no tools are needed. The white finish has a clean look, though it will stand out more on darker paint than a black accessory would. As a rear-camera-specific solution, it won't do anything for keyhole grime or scratches. For drivers who are tired of a blurry backup image in wet conditions, this is the more direct fix.
Final Choice by Use Case
If your main issue is dirt and scratches on the door keyhole, pick the 20mm Carbon Fiber Car Lock Keyhole Sticker Protection Cover. If your reversing camera loses visibility every time it rains, pick the Universal Car Rear Camera All-Weather Protective Cover. Drivers who want both areas covered can install the keyhole stickers on the doors and the camera cover at the back of the vehicle.

