Put this little bright spot anywhere,your seatpost, your backpack, your beltnd ride on. The Flashback is your go-to savior, packing a mighty "I 'm here!" punch to keep you visible on the streets. The simple o-ring mount takes a split second to install or remove on a round seatpost. With its belt clip, you can clip it on just about anything, and its compact size makes it a total no-brainer for keeping your ride safe and your street-cred high.