... factory Style Warning tape, barrier tape , no adhesiveMaterial LDPE/HDPE/MDPE; Green/red/yellow/blue , any color is OKSize ... on the produce craftUsage Barrier, safety caution, construction site, underground pipe buried, other purposesRemark 1, Material, size, thickness, printing, quantity ... 2.1, Un-detectable warning tape, usually , Material of HDPE or LDPE : 2.2, detectable warning tape,usually made ...