These roller shades come have both Light filtering and blackouts options. The blackouts are perfect to help keep your bedroom dark during the bright early summer days. Light Filtering shades let some light in but still give you privacy. For the Light Filtering shades, the lighter colors will let more light in and the darker colors will b;ock more light. All these roller shades are completely private. We can customize these blackout roller shades up to an 1/8th of an inch. Once you click your size you will see a "Customize Now" button on the top right. You then type inside the window frame mount or outside the window frame mount and you exact measurements to the 1/8th of an inch. You will also see 3 lift options under the customization options.