Sizes available: 2FT6 Small Single, 3FT Single, 4FT Small Double, 4FT6 Double, 5FT Kingsize, 6FT Super King. Mattress print may vary in design, but does not affect quality of product. Long life 13.5 open coil spring, the most popular springing system in the world, combined with a vertical style stitched boarder, which gives this mattress and edging and a lasting profile.