Insulating BLACKOUT Liner fits 40”W x 84”L Bamboo Ring Top panel. Ideal for Thermal Insulation against heat/cold loss, Blocks sunlight and provides added Privacy. Easy-fasten “Hook and Loop” system comes preinstalled on all Versailles Bamboo Ring Top panels and Versailles Liners for hassle-free installation of and removal of BLACKOUT Liner. 100-Percent polyester face and 100-Percent acrylic backing; Machine washable. Suggested for Indoor use only.