Editorial Product Review:Item Description:Harbingers highly versatile Balance Trainer supports stability and posture, and can been used to improve upon a wide variety of training regimens. Made from comfortable and pliable polyvinyl chloride, the Balance Trainer isolates core muscle development in conjunction with other equipment, or with simple aerobic exercise. The portable Balance Trainer features two sides, one smooth and one nibbed, for easy adapting to different training surfaces.
Amazon.com Item Description: Highly versatile, Harbinger's Core Balance Trainer can be used in a variety of exercises to enhance core muscle strength and development, as well as improve balance and posture. This compact, inflated disk is two sided - smooth and nibbed - to use on different training surfaces. You'll be amazed by its multiple uses and effectiveness.
What's in the Box? Harbinger Core Balance Trainer
Manufacturer Warranty 90 days
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Product Availability: Usually ships in 24 hours
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Buyer Reviews
Average Buyer Rating:
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Use it Everywhere, for Everything, to Get More Results Per Workout
Balance Disc and Bosu Balls are both essential tools for increasing proprioception, stability, and strength.
You can do push-ups, squats, lunges, and other bodyweight exercises on these equipments to increase the intensity and versatility of each workout. Try doing the exercises with just one hand or one leg for an even greater challenge.
I sit on my balance disc wherever I go: work, classes, meetings, movies, dates. These tools force you to have a great posture to stay balanced on them. You can slowly raise each leg up to get a nice core workout while you sit.
The balance disc is great since it is convenient to carry and inexpensive. The bosu ball is a worthy investment as well, but you should master the balance disc first.
If you don't feel the burn after 10 repetitions, you are doing the exercise wrong. In all exercises, it is the eccentric portion of the exercise that builds muscle. Do the exercise in a smooth, controlled fashion with a 3 concentric and 6 eccentric count. Squeeze at the peak of the motion to get that extra pump.
As in all exercises, make sure to keep your wrists straight and check your posture with these seven vital points: feet hips-width apart and pointed straight ahead; knees slightly bent; pelvis at perfect middle, as if you are sitting at a bar stool; stomach tight, but not flexed; chest straight and aligned on top of ribs; shoulders parallel to ribs; and neck straight on top of body.
Customer Rating: -
An excellent and inexpensive tool for core strengthening and balance
The Fit Disc can be used for balance and core strengthening (abdominal and lower back) exercises. Enhances the posture as well.
I find the balance discs a great portable tool to help with a workout.
Some exercises that can be done using the Fit Disc:
-Standing single leg balance, core balance sit
-Sitting on the disc to do crunches and other ab exercises
-Standing on the disc while using dumbbells for arm strengthening
-Standing on the disc while doing squats
-Use the disc while doing lunges, step ups, push ups, planks
Customer Rating: 
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Good gadget but a little flabby
I got this to do proprioception exercises as part of my knee rehab. It's a lot like the one my PT gym has. The only problem I've had with it is that you can't adjust the inflation and it's a little under-inflated for me. The main exercise I do on it is to stand on it with one foot - but if I try to do it without shoes on (which I'd prefer) my foot bottoms out and ends up partly resting on the floor instead of on the cushion. My feet are women's size 7.5. (It works if I just wear flip flops.) Anyway, the price was decent and it's pretty good, just not adjustable.
Customer Rating: -
Similar to seating cushion
My sister purchased a cushion similar to this one from her physical therapist for about $50. It is the best thing I have used for sitting on hard bleacher seats during sporting events. (Hers was similar to: Fitball Seating Disc Balance Cushion)
I didn't want to pay $50, so when I found this at Ross for under $10, it became mine. It works as well as her $50 cushion and I am delighted that I didn't have to pay the higher price.
For the reviewers who are not able to use this in the traditional way, try sitting on it the next time you go to a football or basketball game.
