Bike Water Bottle for Kids - 100% BPA Free and Easy to Attach to Any Bike - By Ride Along Dolly: Riding a bike is hard work, and bound to get anyone really thirsty. Bling up your bike with this awesome, 100% BPA free Kids Water Bottle.If you haven"t noticed, its impossible to find a bike water bottle made for kids. This bottle can go with your child on any trip, is compact in design, and easily attached to your bike frame in minutes.