1/4"(55) to 1/4" (55) / ¾ð¹ë·±½º(¸ð³ë) 1. ±æÀÌ : 2.5 ¹ÌÅÍ 2. ŸÀÔ : 1/4"(55) to 1/4"(55) /¾ð¹ë·±½º(¸ð³ë)