[Precise Garage Parking Assist] 2-Pack garage tennis ball parking aid adopts eye-catching fluorescent yellow color to let you see it at a glance, which can accurately detect the position and distance of your vehicle. Y [Upgraded Non-Elastic String] Our car parking aids for garage adopts non-elastic nylon braided rope (13-feet); Compared with the elastic cords attached to other parking assistance balls, it never age to gradually become longer [Strong Spring Adjustment Buckle] This garage parking sensor set equipped with 2 powerful spring adjustment buckles and 2 oversized screw hooks, it can help you easily fix the car stop sign ball to the top of your garage and freely adjust the height of the parking indicator according to the parking position. [Convenient to Install] First, park the car in the ideal position and mark it. Then, install the screw hook on the garage roof above the front window according to the marked position. Then, suspend the indicator ball through the lanyard and the adjusting buckle. Finally, adjust it until it just touches the front window glass. [Make Garage Parking Simple] Ideal garage parking stops can make full use of the garage space while avoiding vehicle scratches. Color: As Shown Material: Rubber+Plastic Package Contents: 2 Packs * Tennis Ball Garage Parking Aid Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.