Material: Retro-reflective fabric (glass microbeads).
 
These Ø30mm Flahs, sold by 2, are innovative tear-proof textile stickers.
Magic, they are able to adhere to any type of surface. Repositionable a multitude of times, when they no longer stick, these flashes are washable with soapy water, let them dry and they start sticking again.
 

These flashes will equip you from head to toe, we will only see you!