Human Hair Weft 100% Russian Double Drawn Hair Extensions Human Hair Remy

Hi, I'm interested in your Russian double drawn weft hair, I'm wanting to stock weft hair and was wondering your prices and if you could give me more information on your hair. How many colours do you supply and do you do custom colours? Also do you offer samples to try? Also how long does the hair last and is the hair remy? Thanks.
Material:Human Hair
Length:12