Prim Pinch Pleat Curtains ?Pleat height 3.5". Pleats space apart 5.5-6". ?Pin hooks height adjustable within 3". ?Pin hook has a ratchet system to make them adjustable. Pin hooks included, but drapery rod rings are not included. ?Panel width is the width that pleats already set. 1.8X fabric usage in default to create pleats and folds. ?Side hem 1", bottom hem 4". ?Measure length from the eye ring where the curtain hooks attached. ?If rod or track length is 100", add 1.1x fullness or additional 4" width for overlap and gap privacy, then order 1 panel of 110" or 2 panels of each 55" wide. ?It works for traverse rod, rod with rings or track. ?Pinch Pleats can often require more widths of fabric for a given track/pole width so pinch pleat curtains can be quite a bit more expensive than other headings. ?Pinch pleats are more gathered than other headings and have permanent sewn-in pleats for a more luxurious, tailored look. We use a fully adjustable sliding plastic curtain hook for ease of use. ?Please note that the size and spacing of the pleats will vary slightly from the picture depending on your track/pole width. Prim Blackout Curtain Lining ? 100% polyester black yarn woven inside, 140 gsm weight. ?White finish standard. ?Block out 95-99% of sun light. ?Gives drapery more body and fullness. ?Moderate protection from sunlight damage. ?Make back side of drapery smooth and clean. ?Crease, water and stain resistant. ?Protects face fabric from harmful UV rays. ?Provide moderate to significant thermal insulation - helps to reduce energy costs by insulating windows from heat loss in the cool months, and heat transfer from the outside through the summer months. ?Moderate noise insulation.