Features
The blackout roller blinds are inexpensive than the other types of blinds. Although they are not of cheap quality, they are just simple compared to other window treatments. It only becomes a bit pricier when you get them customized with your preferred choices of fabric and rod.
These are perfect for the audiovisual room or the entertainment center in your home, as it 
does not only keep the sun’s heat from coming into the room, it prevents light and sound to filter in as well. Therefore, if you are in for a movie night with your family and friends, just roll down your blackout roller blinds and you may start the screening.
The blackout roller blinds are easy to install as it consists of only one unit that sits on two brackets comfortably. All you need to ensure is that you have the right measurements of the window and purchase the right size of blinds.
They are very simple enough to use not like the regular window blinds where you have to deal with strings that have to be operated at the right angle to make it work properly. Blackout roller blinds only need to have the shade pulled down to keep in place, and pull once more to make it rise. Other models come with sidewinders where you just need to pull turn up and pull again to turn it down.
There is the option of electric mechanisms for its operation. This is perfect for windows on walls with high ceilings. Mostly used by hotels and schools and hospitals.
Materials
There are various selections of fabric materials available in the market. The cheapest one is 100% cotton. There are those made of the durable material PVC are commonly used that can accommodate print designs; as well as flame retardant fabrics that come in a variety of colors.
They can also be made from canvas, which are easily cleaned by simply wiping off dirt with a cloth dampened in a mild cleaner. No need to dry-clean, iron, bleach or wash.
Various designs are available, mostly are solid colors, that used to be just neutral shades of white, black, brown, and gray; but now brighter colors, like red, yellow, pink and royal blue, have been used by some manufacturers so that these may be used in children’s rooms.
Where available
The Tupplur Roller Blinds by IKEA is available online and at their stores for $14.99 (width 24 inches x length 77 inches) and $19.99 (width 32 inches x 77 inches). Their roller blinds can be mounted both outside and inside the window frame, or in the ceiling (just ensure that you have chosen the fittings or screws suitable the type of mounting you chose).
The rod is made of galvanized steel with tinted clear gloss; the sidewinder control of acetal plastic; the fabric is 100% cotton treated with acrylic plastic; and the bottom rail of solid spruce or pine, or solid birch or beech.
It has a special coating that will not let the light filter through; for child safety, a wall fitting for the blind cord; continuous sidewinder control make easy pulling blind up and down to desired position; and can be customized to the width required.
Lifestyleblinds.com on the other hand, offers you to customize the blackout roller blinds that you require. They are made of strong aluminum tube that holds the fabric, features a no-sew bottom bar; and comes in many colors from neutral shades to bright colors like pinks, oranges, and yellow.
Materials used are polyester with PVC coating or PVC blend that is easy to clean and maintain. For your kitchen and bathrooms, moisture resistant textile materials are also available. List price for standard size 24 inches width by 77 inches length custom blackout roller blind is $128.00; whereas for the 40 inches width by 77 inches length, its $139.00.
Blackout Roller Shades by ShadesShuttersBlinds.com are made in Texas of very high quality, durable fabric with the heavy-duty continuous cord loop system. For a standard size of 24 inches width by 36 inches length the suggested retail price was $141.78 but the discounted price on checkout comes down to $60.55 with free standard shipping.