These are string supplies for handmade crafts. Only the pink string is unopened. The red loop ends are 13mm, with 4 pieces, and there are no 15mm ones. The yellow cord stoppers show little sign of use, but are not unused. The four yellow strings are each 75cm long. Please refer to the photos and consider purchasing if you can make good use of them. #loopends #cordstopper #daiso #handmade