Thank you for viewing my item. This is a bench press sling. I bought it to try because I was concerned about shoulder pain, but I only tried it on and it doesn't fit, so I'm selling it. I purchased it for 4980 yen, and it took a long time to arrive. It has quite strong elasticity, so if the size is right, I feel it could help increase bench press weight and prevent injuries. I considered returning it to Amazon, but it's a hassle because it's a return to overseas, so I'm listing it at a lower price. If you're interested, please consider buying it. Please refer to the third photo for the size.