WHAT IS A LOOKUPDUMMY BIKE RACK REMINDER & WARNING CLING AND HOW DOES IT WORK?
When you have your bikes on your roof or rear rack stick your lookupdummy cling up in the corner of your windshield or on your side window. At 4 x 4 inches or 3 x 6 inches they are the perfect size to remind and warn you about your bikes on your rack but not too big to block your vision. When the bikes come off your rack take your cling off and put it away. THESE ARE NOT PERMANENT STICKERS! They work because they are there ONLY when you need them. Here is what they look like in action.
If you still aren't sure how they work or just need a little more convincing these are the best bike car roof and rear rack reminders ever made watch this short video.