About length Our size is width x height, the unit is cm example, 300x200cm capacity 300cm large and 200cm excessive Stand at the appropriate distance The backdrops need preserve distance to take images Also many broad length images may viewed somewhat pixelated Different lighting will have assorted taking pictures effect,you can attempt to modify the lighting to make your pictures greater About materials We are a pro background manufacturer, we have two materials, vinyl and polyester Viny material: Not waterproof;it have less crease, Can solely be used for photography backdrop; Maximum seamless width of 300cm; you would iron it to take away the creases,Crease would be improve Suitable for indoor use, suitable for one-time use Polyester Material: Thicker,soft,better Can be washed and ironed,No crease Any folding, easy to carry Economical price, Better quality! Can be used for either indoor and open air photography; Can be used and stored for many years Round background The around background is fabricated from polyester The diameter does not consist of the outer edge Buyers demonstrate About color Please observe that there are many different display resolution between each computers, so the color shown on screen may perhaps has chromatic aberration We will try our greatest to circumvent this situation, thanks for your knowing If you have any problems once received, Please be happy to touch us before leaving a detrimental suggestions We would attempt our greatest that can assist you resolve the issue Wish you have a contented browsing in our store! Thank you !