Happyjoy 5 LED Bike Bicycle Front Headlight Tailing Light Safety Waterproof & Quick Release for Street Mountain Children's Bicycles 5 LED Bike Front Light, 500m range; 2 modes: continuous/ flash; Mount Bracket Fits for Handle Bar Diameter: 23-26 mm. 5 LED Rear Warning Light, angle adjustable mount; 7 modes; Mount Bracket Fits for Bar Diameter: 19-26 mm. Up to 150 hours for lighting,4 x AAA batteries; 100% Waterproof set (not immersible). Easily Installs In Seconds - no tools required. Quick release for anti-theft. 3-year warranty