Build finger strength while you fidget! Sturdy 2-1/2" finger grip exerciser with a slim barrel and sensory bumps for strengthening hand grips. This pocket sized finger strengthening tool is a combo therapy and sensory fidget tool! Designed for older children, tweens, teens, and adults, this neat finger exerciser also makes a great, stress-relieving office desk toy! Comes in assorted beautifully bright colors. Nice!