Review on Boost Safety with Sunnyglade Collapsible Reflective Traffic Purpose Occupational Health & Safety Products by Rusty Calcara

Haven't used it in the field yet but the material it's made of seems very good. I will be using it at night for my drone flights (FAA waiver filed). Cause of red traffic lights in our case. We will block our LZ with warning tape. These cones fold up as directed and all four fit into a backpack for easy portability. Great idea and great product so far.