TIPEYE LED Bike Wheel Lights IP65 Waterproof with Batteries Included Easy to Install Bike Spoke Decorations Visible from All Angles for Ultimate Safety and Kids BE SAFETipeye LED bike wheel light is 6.56 feet long and consists of 20 pcs exquisite and super bright LED lights make you can be easily been seen on the road . With two steady and flash modes,no speed required. It can be turned on/off after your operation. So called "Auto open" bike wheel light on market by others are bound to be randomly open no matter the speed or at night when riding.It is too dangerous to use. Don't take your life at risk. Super Fun & Cool As seen on different TVs and popular among FB, TT, INS. It not only makes you been seen safely on roads and also increase your rate of second glance when riding. You will be immediately noticeable and the coolest because you are so bright and attractive. Don't hesitate to take this to enjoy your romantic riding with your boy/girl friend and kids. Waterproof and Durable High level of IP65 waterproof design with Tipeye bicycle wheel light. Rain or shine, summer or winter any weather condition, any time enjoy enhanced visibility. High quality copper wire that is thin and flexible, can be easily bent and shaped. With three batteries included. Long lasting up to 18 hours on only 3 AA batteries ! Easy to install for the whole family's Bicycle This bicycle light fits most of the bikes from 12 inch toddler bikes to 29 inch adult bicycle with standard spokes. No tools required, even your kid can install it by hand. The wide of kid's bikes hub need to be more than 1.38 inch to install. It sill not affect the bike's center of gravity or speed when riding. Extended WarrantyAll TIPEYE bike lights are covered with 30 days return/refund and 1 year Warranty(Repair Policy). For customer who has always been supporting TIPEYE bike light, customer who bought at least two types of lights from Tipeye can have extended 6 months warranty. If the bicycle tire light string cannot bright please make sure the battery is corrected installed and has power. Please change battery if the battery is dead.