Here's a great way to make your sitting more active - when you just can't sit on a ball! This inflatable disc is made to do many of the same activities that you do on an exercise ball - but in a fraction of the space. The dome shape provides safe instability for a variety of activities. Keeping your spine mobile will make your day go better and your body feel better. With a Chair Disc in your chair you can do pelvic tilts right and left, also forward and back while you sit at your desk. * Mimic any balance exercise you do with a ball or wobble board * Add challenge to any exercise - sit-ups, push-ups or squats * Reduce ADD/ADHD symptoms (by 18%) in school children during seated activities. * Promote dynamic flexibility of the spine and hips * Enhance instability to teach reflexive balance Chair Discs are: * Professional quality * Latex free * Virtually indestructible * Less expensive than wooden balance boards * Textured on one side to avoid slipping * Deflate-able for easy storage or transport * Easy to change challenge - just adjust inflation level Standing Balance Workouts The chair disc provides standing instability to enhance balance training and core muscles development on an "uneven" mobile surface. Standing on the Chair Disc strengthens the ankles, calves and muscles of the knee. Use in Every Seat you Sit on! Add to the chair at work or home or bleacher at the game, improve spinal alignment, and enhance ergonomics of sitting - while developing the muscles of your body's core. Use multiple Chair Discs to do squats and lunges or pushups for increased challenge and results. Spice up every workout you've become accustomed to! Children will love to sit! But won’t need to sit still! Kinesthetic learners will be able to enjoy sitting at a desk. It’s been shown that children have increased concentration levels while seated in a classroom on a chair disc. By adding appropriate movement potential, children are able to release pent-up energy, allowing them to focus better on the academic tasks. Get a chair disc for school, the office and the workout room! And don’t leave home without it – commuters and air traveler use them on trips away from home for convenient, spinal health workouts. Note: SHIPPING AND HANDLING: Due to the Chair Disc's size and weight the Shipping cost is $10.00 We ship most packages via the United States Postal Service--First Class or Priority Mail. When multiple items are ordered together we will make every effort to save time, energy and mother earth in our packing – this will save you money too! DELIVERY TIME: Under normal circumstances we process your payment and ship orders within 48 hours. Allow Mail delivery to take 2-10 more business days. Availability: Usually ships in 1-2 weeks. Chair Disc - Everything a ball does - except bounce! CD- 15" - BlueFull Retail Value: $25.00Sale price: Eat Right and Exercise Regularly! Thanks for shopping at PRO-FIT's Exercise Express Shopping -shipping and handling charges are only estimated here. Exact amount will be added to your bill. If you are ordering more than one item, they will be packed and shipped in the most cost effective manner. The exact cost of your shipping will not be shown on your order - only the minimum fee. Cost for each shipment will depend on the size, weight and distance shipped. Minimum postage fee is $5.00 for any item. All items weighing over 6 pounds will be shipped UPS and cannot be delivered to a Post Office Box - so please include a street address on order form.