Reversible vertical blind head rail enables left or right opening; vanes tilt and traverse via wand for cordless operation; vane packs sold separately;2 vane packs required for this width; Cut head rail length FOR FREE in store from 78-in to 42-in (in 1/8-in increments), or order online, pick up and trim at your nearest store; Standard mount is inside the window or door frame, therefore actual head rail dimension is 1/2-in shorter; vertical blinds can also be mounted outside the window or door frame; Ideal...