Review on Isoflex Hand Exercise & Stress Relief Set (2 Pack) - Assorted Colors by Rachael Taylor

Slightly stronger than I expected but may soften over time (if it survives - I see others saying they didn't last long). I got two in the same color (I like turquoise the least, but it was a known risk from the pictures). One had a blue inner sphere of a different color - a few contrasting colors but it's not a fashion accessory. One item had holes at the top where it's closed so sand can't seep out so I think it's ok but it suggests it won't hold up. If you have balloons, sand, and something to hold the ends in place, you can make them a lot cheaper.