Visible up to 500m, these rechargeable lights clip easily and securely to your heels so you can feel at ease whilst walking, running or cycling in low light or at night. FEATURES Securely hooks onto your shoes with no adhesives or fasteners. Target shoe size heel width between 2~3.5 inch, fits most size shoes. Ultra bright lights are visible up to a half mile, high quality LED giving maximum light output to be seen by drivers in peripheral vision. Color changing RGB flash output and steady color fast strobe. Press once to keep for the first lighting mode, press again to activate the flashing mode. Feel free to use in any terrain of any weather, super lightweight for all outdoor activities running, jogging, cycling, walking, horse riding, etc. Using the best PVC quality materials which provides greater flexibility. Built-in batteries last up to 60 continuous hours of flashing lights with one single charge. We truly believe we make some of the most innovative products in the world, and we want to make sure we back that up with a risk-free ironclad 45 day guarantee. If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase. Buying items online can be a daunting task, so we want you to realize that there is absolute ZERO risk in buying something and trying it out. If you don't like it, no hard feelings we'll make it right. We have 24/7/365 Ticket and Email Support. Please contact us if you need assistance. Remember: Shipping usually takes 2-3 weeks read our Shipping for more details!