These strap pins/lock pins, featuring a non-loosening nut (explained in photo 8), are sold exclusively by Shimamura Music. ○ Used a few times in live performances. ○ There are scratches and dullness on the metal parts. ○ The felt holes are slightly widened (photo 6), but they were still usable without any problems. (You can also use the felt from your existing equipment.) ○ The number and color of the screws differ from the accessories listed in the instruction manual (photo 7), but this is how they were when purchased, and all accessories are included. ※ After researching, I found that there were versions with different felt colors, so there may have been a minor change. Instant purchase is OK.