Fidgeting with Wiggle Feet allows excess energy to be expelled while sitting at a desk or in any chair helping achieve greater focus. Quietly enables movement while working as the relaxing deep pressure fosters the ability to stay on task and be more productive. Provides a calming influence as the dual textured surfaces; on one side flexible nubs and on the other small bumps facilitate just the right amount of tactile stimulation. Excellent for bilateral coordination, improving balance and stabilization. One size fits all 12 x 15 x 2.5". Customize firmness to contour exactly to each individual's needs. Anti-burst, slip-resistant high-quality material. Comes inflated with pump included to customize firmness.