Genie Perfect Stop Garage Parking Aid - Retractable Yellow Ball Compatible with All Garage Door Openers - GPS-R

Exactly what I was looking for.

If you follow the instructions to a T, works really well. But you have to tailor the installation to your garage and that can get complicated. Once you've worked it all out though, is great. Works perfectly for parking and when the door is lowered again the ball retracts back to the top of the garage. Would recommend to anyone but you could just go buy string and a ball and some eyelets for half this price. For the price ($6+) you're basically paying not to have to go to the store for the parts. It's a simple device. Took me 15mins to install once I had the planning worked out to properly distance the eyelets and keep everything in a straight line on the ceiling.

This is very handy for parking in our somewhat tight garage space . I can aim the SUV in for the perfect spot so I don't hit the garage's concrete step , I'm still positioned so our truck can also get in there and the garage door doesn't hit the rear bumper when it closes. It's a bit more durable than just a tennis ball and a string

This has made my life better. This saved my garage, my wife’s car, my marriage. Ok maybe not the last one but setting this up was easy and it allows us to park just right in the garage. I love that it retracts into the ceiling when the door is closed allowing me to freely work in the garage when the car is out.

I park in front of our upright freezer in the garage, it was always a pain if I was too close to the door if you needed to open the freezer. This has worked perfectly. I park in the same place every time.