Product Features: IMPORTANT NOTE: when you receive this product , there will be a transparent protective film covering the mirror. This is to make sure the mirror remains crystal clear & doesn't get scratched during shipment. Please take off this protective film before using the product! FAST & EASY INSTALLATION - Easily attaches to your helmet in less than 60 seconds using an ultra-strong velcro pad. Just line it up exactly where you want it, then lock in your preferred adjustment - and you’re done! Once locked, the mirror stays in position so you never have to worry about it vibrating during your rides. Mounts on both left side or right side with ease. PERFECT REARVIEW VISION - Crystal view flat mirror helps you accurately judge the distance of objects behind you much better than a curved or convex mirror. 360° of adjustment allows you to use your peripheral vision to accurately see everything behind, while maintaining a clear view of the road ahead. The shaft length places the mirror at a perfect distance in front of you so it stays steady even during bumpy rides. FEATHER LIGHT & STURDY - Even though it's super light; you’ll be pleasantly surprised by how sturdy this mirror is. The strong polymer & aluminum construction makes this cycling mirror a perfect combination of ultra-strength & feather weight.