Purchased a few years ago for 2,600 yen. I opened it once to check the size, but I ended up not using it, so it's unused. Mesh Arm Sling Uderaku Mock With a 3-way thumb holder, it helps to comfortably fix the injured arm in place. Shoulder strap length is adjustable For both left and right arms Excellent breathability S size: 20-30cm from elbow to base of thumb Perfect for children to small adults No smoking, no pets. This item has been stored by an individual, so please understand this before purchasing.