The light emitting diode (Led) elbow plus knee guards are the perfect way to customize your fit and make sure you're protected while you're out having fun. The straps are easily adjustable, so you're sure to get a comfortable fit every time. And with the light emitting diode (Led) lights, your outdoor activities are safe and fun even after dark. The impact resistant material means that no matter what kind of activity you're engaging in, these guards will keep you safe from injury.