At Amazon, get this LazBlinds No Drill Cordless Blackout Roller Shade for $46. It's the best price Amazon has charged for this roller shade.
The blackout fabric is rated to block 100% of light, and the shade can be installed with foam glue or screws, which suits renters. Shipping is free.
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Features Cordless roller shade that blocks 100% of light Fits inside or outside window mounts No-drill installation with foam glue or brackets & screws Actual shade size is 33.8" wide x 72" tall Polyester fabric, spot clean only Includes mounting hardware & installation manual