I found the SCS directions for a double slider are not the best. I hosted a masculine interactive card swap and someone submitted a double slider. I took apart her card and saw what she did.
Card: 4.5 x 11.5
Slit: 1.25 inches from the top, 3 inches wide
Big slider: 3.5 x 5.25
White insert: 3 3/8 x 5 1/8
Little slider: 2.5 x 4.25
White insert: 2 3/8 x 4 1/8
Front panel: 3.5 x 4.75, decrease length and width by .25 for each layer.
Adhere little slider to big slider lining up the bottom edges. Use SMALL pop dots.
Push little slider through the slit.
Use pop dots at each corner and in the edges in the middle.
Here's a link to a card I made.
Gallery at Splitcoaststampers
Directions for a Double Slider
