The Window Towel Green or Blue is a professional glass and window towel for a scratch free, lint-free and streak free finish. Unique dual-texture design has a silky smooth finish to quickly wipe away any streaks. Works best when used slightly damp with water or spray cleaner. A premium blend of fibers with a 70/30 polyester and polyamide blend. Best used with Walt's Glass Cleaner or any great glass cleaner. Just lightly spray one sprits in every 1ftsq space and watch it clean with no streaks with only one or 2 passes. Considered the highest quality available preferred by professional detailers around the world. Don't be fooled by cheaply made lower quality "knockoffs" from other countries. Extremely durable with the ability to withstand hundreds of washings getting softer each time.