This is a set of four brand new, unopened SONY METAL-XR 100 cassettes, a valuable deadstock item. METAL-XR is a TYPE-IV metal position cassette tape. I had them in storage for use and as part of my collection, but I've decided to sell them due to decluttering and end-of-life preparations. Recently, there has been an increase in demand for cassette tapes due to the retro boom. Why not consider purchasing them? In addition to this item, I am also selling my collection of SONY cassette tapes, but this will be the last of my deadstock. Please take a look if you have the time. Due to my wheelchair-bound lifestyle, I am unable to ship items immediately, but I will do my best to ship them within the day after payment is received. I will handle your order with sincerity, even if it's for a short time.