Groovers are a special hardware option used only with fabric vertical blinds. Groovers are long plastic sleeves that the fabric slides into. This gives the fabric more support. You may be asked to choose a groover color as well. Holding all those slats together is the ladder .
Standard ladders are thin cords that are threaded through each slat.
In some cases, you may be able to substitute a cloth tape for a ladder. Tapes are strips of fabric, usually one or two inches wide, and are available in a wide variety of colors. Tapes are very popular on wood blinds and two inch aluminum blinds. The bottom rail is a heavier horizontal piece of hardware that anchors your blinds on the bottom. Bottom rails are usually color-coordinated to match the rest of the blind.