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I keep one of these on my desk and the springy material makes it way more fun to fiddle with than a normal stress ball. Bending and twisting it hasn't worn it out at all after a few weeks. I haven't tried launching it across the room yet, but it's tempting.

Bought a handful of these for my classroom fidget basket and they've held up way better than the plastic ones I've tried. The springy material lets kids bend and twist them without snapping, and they stay quiet during lessons as long as nobody launches them across the room.

The springy material handles all kinds of twisting and bending without losing its shape, which is exactly what I needed for a stress toy that actually lasts. Even after a week of aggressive tossing and launching, mine still boinks back just as high as day one.