Rearview mirror for helmet lightweight portable 360 degree adjustable1、 1. Made of electroplated ABS, this bike helmet mirror is lightweight, durable, and portable. 2、 2. The flat mirror can help you identify the distance of the objects behind you more accurately than the bent or convex mirror. 3、 3. The 360-degree adjustment allows you to see everything behind you accurately with peripheral vision while maintaining a clear vision of the road ahead. 4、 4. The axis places the mirror at wonderful distances in front of you, keeping them stable even during bumpy rides. 5、 5. It can be mounted on the helmet and accompany you during cycling. 6、 7、 Specification: 8、 Type:Glasses 9、 Material:ABS 10、 Color:Black 11、 Theme:Sports 12、 Sports Type:Cycling 13、 Net Weight:20g 14、 Size:240mm 15、 Mirror Size:about 45x30mm 16、 Length:about 22cm 17、 Packaged:Opp bag 18、