Better Fitness Products: ShoulderHorn
Rotator Cuff Training Device

U.S. patent 5,580,342

ShoulderHorn™

Rotator Cuff Exercise Device
Build Strong, Stable Shoulders From the Inside Out
This uniquely contoured form of steel and foam is an exercise device that helps eliminate shoulder pain and weakness.

The ShoulderHorn fits closely and comfortable to your body, and secures your arms in the optimum position for isolating and strengthening the muscles of the rotator cuff. One simple exercise, performed just twice per week with the ShoulderHorn can help make your shoulders stronger and pain free.

What Makes This a Better Fitness Product?
Don't let the simplicity and low cost of this product fool you. It's one of the single most effective ways to strengthen your rotator cuff, and is especially valuable for bodybuilders and athletes involved in throwing sports, such as baseball. There are weight machines that can be used for rotator cuff training, but most are very expensive, and few gyms have them. The ShoulderHorn outperforms those machines, because it automatically locks your arms into the most effective position for rotator cuff training (partially abducted and in line with the scapular plane). Regular use of this product will make your shoulders less prone to injury, and can boost your strength in the bench press and many other upper body exercises.
How to Use the ShoulderHorn
The ShoulderHorn is used with a pair of hand-held weights to perform the external rotation exercise shown on the right. Beginners will use as little as 2 lbs of weight for this exercise, and even the strongest athletes will need less than 20 lbs. For this reason, a small medicine ball, or even a can of soup, will provide suitable resistance if dumbbells aren't available. A training booklet, included with the ShoulderHorn, provides additional details on how to benefit most from this product. rotator cuff training
Why the ShoulderHorn Works
Two of the most underrated muscles of the body are the infraspinatus and the teres minor. These small muscles of the rotator cuff stretch from your shoulder blade to your upper arm. They work together to externally rotate your arm, and to stabilize your arm during almost all shoulder movements.

If these two muscles are weak or underdeveloped in comparison to your major chest (pectoralis major) and back (latisimus dorsi) muscles, a muscular imbalance is created that can severely jeopardize your shoulder's integrity, and lead to chronic pain and injury. The ShoulderHorn helps restore your shoulder's natural strength balance by specifically strengthening and conditioning these two key muscles.

Bench pressing a weight, throwing a baseball, and serving a volleyball are just a few of the many activities that overdevelop your internal rotators in relation to your external rotators. By isolating and strengthening your external rotators with the ShoulderHorn, you can eliminate this muscular imbalance and restore proper function of the shoulder.

rotator cuff muscles

External Rotation to Strengthen the Rotator Cuff

Pricing & Availability
The ShoulderHorn is available in 2 sizes...
ShoulderHorn - Size 2
For heights up to 5'10" and weights up to 190 lbs.
In stock, ships in 1-2 business days.
$59.95  Qty: 
   
Add to Cart
ShoulderHorn - Size 3
For heights over 5'10" and weights over 190 lbs.
In stock, ships in 1-2 business days.
$59.95  Qty: 
Order with Confidence
This product line is made in the USA, and carries STI's Complete Satisfaction Guarantee. Try it in your own home for 90 days. If you are dissatisfied for any reason, simply return the product to STI, and you'll receive a prompt refund of its full purchase price (excluding the original shipping and handling charges).
90-day money back guarantee
  • Secure online ordering
  • Prompt, friendly returns
  • No restocking fees
  • Made in USA
Sales Tax and S&H Charges
Sales tax of 4.00% will be added to your order if it is shipped to an address within the state of Louisiana.

A shipping and handling charge will automatically be added to your order during checkout. This charge, taken from the following table, covers the shipment of your order via UPS Ground or USPS Priority Mail to any single destination within the continental United States. Additional charges will apply for shipments to Alaska, Hawaii, or non-U.S. destinations, and for rush shipments or other special conditions. Please contact for details.

Order SubtotalS&H Charge
up to $19.99$7.50
$20.00 to $49.99$9.00
$50.00 to $99.99$10.00
over $99.9912%
Dealer Opportunities
This product is manufactured or distributed by STI, and is available at discounted pricing to qualified retailers. STI can also drop ship this product directly to your customers. If you would like to sell this product, please contact to determine your company's eligibility, pricing, and minimum order requirements.
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What Others Say

Here are comments from people who use the ShoulderHorn...

"Great reduction in pain. Almost completely stable, pain-free weight lifting."

- Rick (Glenfield, NY)
"More of a pain free range of motion. I'm not being awakened at night by pain."

- Joel (Cliffside Park, NJ)
"I am finally benching with total confidence, and my weights have increased steadily... an excellent product."

- Jim (Sheboygan, WI)
"Bench (315 to 365). Also more stable and less vibrations during lift along with less pain. Painful 'clicking' noises have almost disappeared on all upper body movements. All in only 5 weeks of use!"

- Jeff (Irving, TX)
"I've increased my weight in bench, flyes, and shoulder press with less pain. I also threw 80 pitches at batting practice (after 5 months of not playing ball) with greater velocity and no pain at all."

- David (Corona, CA)
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