I used it once, but I don't use it anymore. There are no noticeable stains. I will wipe it down and ship it. Can be used for pull-ups. Made of natural latex material for high durability. ■ Full-body muscle training with just one of these. Can also be used in conjunction with other equipment to assist with training. ■ 3 bands with selectable resistance: ・Green: Resistance/58-78kg, Strength/Extra Heavy, Length/2080mm, Thickness/4.5mm, Width/45mm ※Note: The resistance is the value obtained from the bottom end when the top end is fixed. ■ Easy resistance adjustment even with just one band. You can easily adjust the resistance by changing the length you hold or by bundling them. ■ Key points of using natural latex material: 1. Long lifespan. 2. Difficult to tear and can withstand high-strength pulling. 3. Doesn't easily deform.