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- SmartBlock Insulating Curtain Liner uses a proprietary fabric technology to convert any curtain into a room darkening curtain
- Blocks out light and provides maximum sound reduction
- Can be used with existing curtains
- 100% polyester
- Machine wash
- Hangs on a rod pocket
- Liners are sold individually and measure 40" W
- Rod pocket measures 2" diameter
- 60" L liner works best with 63" L curtains
- 80" L liner works best with 84" L curtains
- 90" L liner works best with 95" L curtains
- 104" L liner works best with 108" L curtains
- 117" L liner works best with 120" L curtains