... 2.With 4.5*6mm chain 3.The track for the control have single side Velcro Roman blind ... roll,head track,cord,coe rod,roman blind rings for roman shade curtain,curtain accessories,Roman blind curtain ... style of blind components offer different choice for usersPacking:One set in a plastic bag,25sets in one carton ... setC set Roman blind components-control unit A set for roman blind,roman shade accessories