I love this case for my 6″ double-pointed needles. It is made of clear plastic so I can tell immediately if a set is missing. The flap holds everything in place–no more needles sliding out while you aren’t looking. The extended dimensions are 16″ x 7″.
The case folds up neatly to a small size (5″ x 7″) and is tied with a ribbon. It is available in black trim, with US and metric sizes printed on heavy paper to slide into the appropriate slot with your needles. Now I am able to travel with my full set so I can cast-on at a moment’s notice. It doesn’t weigh much and doesn’t take up a lot of room in a suitcase!