Bicycle 360 Degree Back Mirror Arm Wrist Strap Rear View Mirror

1. Adjustable strap, convenient to wear.
2. Durable and wear-resistant.
3. Wrist band rear view mirror, you dont need to look back when cycling, which is safer.
4. Size: 6.5 x 6.7 x 2cm; weight: 40g
5. Material: plastic + glass