Core Balance Stability Cushion / Disc [Great for Kids Fidget Seat for School Chairs - Active / ADHD / Autism]- Wiggle Wobble Seat - Inflatable Sensory Board - Physio Rehab Fitness & Excercise [Includes Pump] THE DISC: Lightweight, inflatable balance cushion 14.2 x 14.2 x 1.4 inches with PUMP INCLUDED BENEFITS: Improves posture, creates instability when seating down keeping back muscles stimulated, provides core strengthening training workouts, stability and balance training requiring you to utilize muscles movement for a more complete workout. It also helps your child stay calm and focused while sitting FEATURES: Quality disc sensory air cushions are ideal for people who want to strengthen their balance and stability. In addition, it provides kids with (vestibular) movement input and tactile stimulation without ever leaving their seats! TARGET AUDIENCE: Suitable for everyone - especially for those who sit all day! HOW TO USE: Sit, stand or kneel available in pink, purple, blue, grey, red