Feature:1. 2PCS PACK\u003d1PCS x Yellow + 1PCS Silver White2. 4PCS PACK\u003d2PCS x Yellow + 2PCS Silver White3. Flexible Manganese Steel High quality Eco-friendly and effective.4. Highlight, reflective and fluorescent light at night. Auto reflective band will keep you safe when Cycle or running at night!5. Muti-functional for outdoor sports, such as camping, hiking, night activities, outdoor emergency and safety, SOS etc. You can fix it with your arm,wrist or ankle.6. One second quick wearing. Flexible, automatic bending and tightening. Easy to put on and take off.7. It is an awesome and necessary tackle for outdoor exercise!Specification:Miaomiaoce 38CM Reflective Wristband Automatic Tightening slap band Wrap Strap For Running Students Bicycle Riding Safety Occasions: Camping, Hiking, Mountaineering, Night running, Outdoor safety, Emergency, SOS etc.Features:2PCS PACK=random colorFlexible Manganese SteelHigh quality Eco-friendly and effective.Highlight, reflective and fluorescent light at night.Auto reflective band will keep you safe when Cycle or running at night!Muti-functional for outdoor sports, such as camping, hiking, night activities, outdoor emergency and safety, SOS etc.You can fix it with your arm,wrist or ankle.One second quick wearing.Flexible, automatic bending and tightening. Easy to put on and take off.It is an awesome and necessary tackle for outdoor exercise!Specification:Brand: Miaomiaoce Reflective WristbandMaterial:Manganese SteelType: Cycle/Running Safety BeltColor: Yellow, Silver WhiteQuantity: 2 PCS / 4PCS availableDimensions: 380*30*3mm/14.96*1.81*0.11inWeight: 25gPackage Weight: 0.1kg (0.22lb.)Package Size: 10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)Note:Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package includes:2 x Arm BandsPackage List:2 x Arm Bands