LED Letter sign LED Channel Letter Arrow and "J" Shape 3/4" for J shape and ... .5", 2", 3" and 4" for Arrow LED Letter sign, Trim cap for Channel Letter Trim Cap-plastic-aluminum is the most widely ... ,elastic and seamless.It can be easily made into any letter, Chinese charater or picture. It has thoroughlychanged the static effect ... shape and 1", 1.5", 2", 3" and 4". LED Letter sign