反はん射しゃ材ざい

noun

reflective material; safety reflector

Refers to material that reflects light, commonly used in safety vests, traffic signs, and bicycle reflectors.

• 夜や間かんのジョギングには反はん射しゃ材ざいの付ついたウェアがおすすめです。

  For jogging at night, clothing with reflective material is recommended.

• 自じ転てん車しゃに反はん射しゃ材ざいを取とり付つけると、夜や間かんの視し認にん性せいが向こう上じょうします。

  Attaching a reflector to your bicycle improves visibility at night.