The description is "blackout curtain" in large print.  But it isn't.  So I decided to return them because they are not as advertised.  A charge of about $35 was assessed, which I protested because they are not as advertised.  The nice costumer service rep said that reviews indicated it's not complete blackout (I'm supposed to real all of these before ordering??) and that the arrow which points to "blackout" isn't all the way pegged.  But it points squarely to blackout.  At any rate, very disappointed in Wayfair suggest caution in doing business with them.