3M Diamond Grade (980) Red Retro Reflective Tape 50mm x 45m, Designed primarily for emergency vehicles, this tape significantly reduces the likelihood of vehicles being involved in accidents as visibility is increased. The micro prisms within the tape will catch light from more angles than standard reflective tape making it far more visible. Added that this tape has pre-sealed edges and resists fuel vapors or occasional spills with up to 8 years exterior durability make this tape one of the best on the market.