Ekarro EK-2777-002 Modern Flashing LED Stop Sign Garage Parking Assistant System It comes with 4 Sections & Weighted base to keep it in perfect position; Portable weighted base utilizes flexible rod with flashing led light on top that flashes when contact is made with car bumper. Easy to Customize and Adjust for any sized vehicle - Height is adjustable up to 53 inches, You could kindly adjust the right height to your convenience and flashing lights to help you with parking easily in your driveway and garage. Bright Red LED lights up when rod touches bumper - Flashing LED Stop Sign helps you detect when your car bumper is getting too close to the stop sign pole with motion detecting sensors and flashing lights when your bumper hits the pole. Perfect for small and tight spaced garages, comes with 2 X AG 13 Button cell batteries. Batteries are included for your convenience so that the stop sign can be set up right out of the box. Flashing LED Garage Stop Sign is easy to install and works well in tight spaces. Ekarro Flashing LED Stop Sign - Assist Parking in the Garage to prevent dents and scratches on your vehicle. The LED lights in the stop sign flash a warning when a vehicle gets too close, allowing the driver to park the car at a safe distance, even on nights when it's hard to see.