| 摘要 |
PURPOSE:To hardly adhere a contaminant owing to exhaust gas of a vehicle and dust and to continue an indication effect for a long period. CONSTITUTION:A conical or columnar vertical cylindrical indication substance body 2 is caused to stand upright on a bed seat-form base part 1 installed on a road. The outer peripheral surface of the indication substance body 2 is covered with shrink tubes 4 made of synthetic resin in one or a plurality of layers to protect indication 3 by the reflection material of the outer peripheral surface of the indication substance body 2. A peel part 5 easily cut off in the direction of the length thereof is formed on the shrink tube 4. When the shrink tube 4 is contaminated seriousely enough not to allow maintenance of the indication effect of the indication 3, the peel part 5 is cut off from the tube 4 and the contaminated tube 4 is peeled. |
