When I get tired of playing the piano, I use it for finger exercises. I think it's also suitable for finger rehabilitation. It's squishy, fluffy, and soft. Size: Approximately 15cm long x 4cm wide *Measurement tolerance is ±1cm A banana with a mysterious feel that you'll want to hold onto forever, with a texture that's hard to resist. Squish, squeeze. It's a healing item that relieves stress. Squeeze, twist, crush, pull. The right size and moderate elasticity strengthen the muscles of the hands, wrists, and forearms, and can be used for rehabilitation, physical therapy, and to prevent muscle weakness in the elderly. I've used it about 1 or 2 times. It's a used item. Would anyone be interested?