The listing, Dean Markley Blue Steel Electric strings has ended.
"Blue Steels are cryogenically frozen to -320 degrees to realign the molecular structure of the steel, and produce a noticeably improved brilliance and longevity." Quote taken from Hello Music's website where I bought the strings from. They ship the strings without the external cardboard although I used the image so you'd see what the item is, just as Hello Music had done. String sizes are .010, .013, .017, .026, .036, .046. Steel core and steel wound. NIP. Will be shipped with protective envelope and insert cardboard, shown in the second and third images. Sorry, no international shipping or gin.