CLB 100 percent Blackout Curtains 2 Panels_ Thermal Insulated Blackout Curtains for Bedroom_ Grommet Curtains for Living Room_ Room Darkening Curtains_ Room

What color is the backing on these blackout curtains?These blackout curtains are the same color on both sides Do these curtains come with tie backs?Tie backs are not need for these curtains because the grommets allow them to slide so freely on the rod. They slide easily and stay where you put them! Does this product contain coating, or formaldehyde? Is the material toxic free?Our curtains are physical blackout curtains. No coating, no formaldehyde, toxic free and AZO free.  Totally friendly with environment, not harm to body Is there any odor with these drapes?No, the drapes and panels don't have any odor What is the noise reduction rating?These CLB Blackout Curtain can only reduce 10%-20% db noise What color are the curtain grommets?These Gromets are Silver Color What is the diameter of the curtain grommets?The diameter of grommets are 1.6". So, 5/8", 1" and 1.5" curtain rod are ok for it How many panels are in each package?   Is each panel 52" or is the pair combined 52"?There are 2 panels in each package. For example, for 52" x 72" curtains, there are 2 pcs 52" x 72" panels Do they really keep the heat of the sun from coming in?  Are these true blackout curtains?These are true blackout curtains.  It does really stop the sun and helps the room stay cooler.  Perfect blackout curtains for bedroom Are they machine washable?   What is the best way to dry the curtains?The curtains are machine washable and a quick steam/ironing will get you a wrinkle free look What there curtains can be used for?These can be used as livingroom curtains and bedroom curtains