Abilitations Caterpinch Fidget, 10-1/2 x 1-1/2 Inches Fidget provides sensory input to help improve focus and concentration, and strengthen fingers Sealed, liquid-filled caterpillar segments are squeezable for tactile input Versatile for warming up fingers before writing, keeping busy fingers in one place, and strengthening intrinsic muscles Polyurethane exterior and filling for resistance to abrasion, chemicals, and UV radiation Measures 10-1/2 x 1-1/2 inches (L x W)