Bicycle Light Front and Rear Silicone LED Bike Light Set - Bike Headlight and Taillight,Waterproof & Safety Road,Mountain Bike Lights,Batteries Included,4 Pack(2pcs White and 2pcs Red Light)

How do you open the light to replace the batteries

Stretch off the rubber from the inside and you will see the cap that twists off to replace the battery. The silicon is covering the battery. Take out the silicon covering to expose the battery. It is not hard and it can be replaced easily. EASY INSTALLATION: Our premium bicycle lights can be installed in seconds without the need for any tools or other equipment. Add a light to your bike, backpack, helmet or other areas for maximum safety PREMIUM SILICONE ALLOY: We've carefully crafted Classic Glow Bicycle Lights using durable silicone alloy so they can stand up to weather, road use, and even low-impact drops. They're also waterproof VERSATILE LIGHT MODES: Each of our lights feature three specific modes of use-high, low and strobe-so you can be easily seen in early morning fog, dusk, nighttime, and dawn DESIGNED FOR SAFETY: These ultrabright LED lights feature two lithium ion batteries and offer visibility up to a half mile. This helps other riders, drivers, and walkers spot you when riding in low light or complete darkness.