DescriptionDurable steel plate insert, easy flap on wrist the band will automatically slap around. Cover with reflective PVC to create the visibility in dark environment. Suitable for night running, walking, cycling or night construction.Features- Color: Fluorescent Green. - Material: PVC+Steel Plate. - Size: 30.00X3.00X0.10 cm/ 11.79X1.18X0.04 inch. - The reflective snap bracelets offer more security at dusk and at night on the road. - Reflective slap bracelet with a high visibility, remain on arms and legs well in place and protects the pants in front pedals or bike chains.- Suitable for adults such as jogging, sports, horse riding, biking, riding a motorcycle, as well as children on the way to school.- It can also make it easier for the elderly to be seen on the road. - Unlike those expensive LED armbands or ankle bands need batteries. Save money and protect the environment.