The Squeezy Peezy Stress Ball is a wonderful fidget for emotional anxiety and calming. It's a soft pressure for easy squishing. However, as with all of our squeezing balls, it is only meant for gentle squeezing or it will pop. Need something durable... try out one of our fidget pouches. We have sewn an insert squeeze ball into a durable Lycra cover so it will hold up to all of your stress squeezingCan be washed in warm soapy water with a clear water rinse. Perfect hand grip size.