These are clear labels from Nana Create for protecting the printable label surfaces of DVDs and CDs. There are 10 new packs of 10 labels each, totaling 100 labels, plus one opened pack with only 3 labels used, for a total of 107 labels. They protect the printed surface from scratches, sun damage, and moisture. Inner diameter is 24mm, outer diameter is approximately 119mm. I am selling these because I purchased them but hardly used them. They are priced at 600 yen per pack (manufacturer's suggested retail price is 800 yen), so I've set the price lower. Thank you.