THE SWING TOOL 4 SHARKS INVESTED IN.
Patented. Legal in game at every level. 75,000+ players.
- Kevin O'Leary
- Daniel Lubetzky
- Kendra Scott
- Rashaun Williams
Get the 9 STRAP
Full Hide is the shark-approved starter. Legal in game at every level.
THE PATENTED TECHNOLOGY TRUSTED BY 75,000+ HITTERS, WITH LESS THAN A 1% RETURN RATE.
BUILT FOR POWER. BUILT FOR SAFETY.
Increased bat speed
Hands cinch together reduces the moment of inertia, reducing the swing radius or hinge point, immediately increasing bat speed.
End rollovers
Locks hands in a palm up/palm down position, keeping you from getting handsy. More barrels guaranteed.
Prevents injury
Keep both hands connected throughout entire swing, reducing strain and torque on the lead arm for the hitter, and protecting the catcher and umpire from being struck on the backswing.
POWERBALANCECONTROL
STAY CONNECTED
See what a board-certified physical therapist and professional athletic trainer has to say about 9 STRAP Technology.
Watch Medical Opinion →75,000+ PLAYERS. LESS THAN 1% RETURN RATE.
What hitters are saying:
★★★★★"Ended the rollover swing my kid was fighting all season. Two weeks in, we're seeing hard line drives to the opposite field."
— Marcus D., travel ball parent
★★★★★"The barrel feels lighter. My swing path is tighter. First tournament with it and I hit two doubles."
— Jordan R., HS varsity
★★★★★"I coach 12U travel. Every hitter I've put it on is squaring up more balls within a week. It just works."
— Coach Alan T.
★★★★★"Legal in game and I actually feel the connection. Straighter bat path, less swing-and-miss. Worth every dollar."
— Sam P., adult rec league
Pick your 9 STRAP.
As seen on Shark Tank. Legal in game at every level. Free shipping over $100.
Free shipping over $100 · 30-day money-back
THE VERY PITCH THAT RESULTED IN A GRAND SLAM ON SHARK TANK
Watch shark Rashaun Williams use the 9 STRAP for the very first time.
Common questions
What is the 9 STRAP?
The 9 STRAP is a patented game-approved baseball and softball hitting aid and safety device that is worn on the hitter's top hand; keeping both hands cinched tightly together throughout the entire swing, forcing a connected, two-handed follow through.
Is 9 STRAP legal to use in games?
Absolutely. Game approved at every level, from youth to the pros.
How does a 9 STRAP improve my swing?
The 9 STRAP forces the hands to be cinched and locked together, thus reducing the moment of inertia, and therefore increasing bat speed and exit velocity.
With the hands locked together in a palm up/palm down position, the 9 STRAP makes it nearly impossible for hitters to roll over, ensuring more balls are squared up.
The 9 STRAP ensures the bottom hand (the faster of the two) is pulling the upper hand through the zone, keeping the hands closer to the body and staying inside the ball.
By maintaining a secure grip, and keeping both hands connected throughout the entire swing, the 9 STRAP gives the hitter more control, as though the bat is an extension of the arm.
9 STRAP Technology prevents and corrects major swing flaws, such as: Casting, Leaking, Disconnecting, Rolling Over, Barrel Dumping, and more. The 9 STRAP promotes good balance and batting posture, optimizes bat path, generates more power, and increases overall swing efficiency.
BETTER CONTROL / INCREASED BAT SPEED / INCREASED POWER / CORRECTS SWING FLAWS
How does a 9 STRAP prevent or help rehab an injury?
SHOULDER, ELBOW & WRIST
Hitters generate a tremendous amount of force when they swing the bat. When they let go with that top hand on the follow through, this places most of that force directly onto their lead arm, increasing the chance of injury to the shoulder, elbow, and/or wrist.
9 STRAP keeps both hands connected throughout the entire swing, eliminating single arm follow through on the backswing, reducing the amount of force on that lead arm, therefore mitigating single arm swing injuries.
CONTACT WITH CATCHERS
When hitters let go with the top hand on the follow through, this significantly increases the distance the bat head travels and extends towards the catcher on the backswing.
9 STRAP keeps both hands connected throughout the entire swing, substantially reducing the distance of the follow through, so catchers are far less likely to get struck on the back swing.
Research data conducted by a 3rd party lab suggests the 9 STRAP reduces the distance between the bat head and catcher by up to 30 inches, thus nearly eliminating the possibility of contact occurring when used properly.
How long until I see results?
Most hitters feel the difference in their first cage session — the swing feels more connected and the barrel comes through faster. Muscle memory locks in over 2–3 weeks of consistent use. Wear it in the cage, in BP, and in game to accelerate the change.
My kid plays youth baseball or softball — will it help them?
Yes. 9 STRAP is used from tee ball through MLB — same tool, same mechanic, just different intensity. It scales with the player. Most parents see rollovers disappear and cleaner contact within the first week or two.
What if it doesn't work for us?
Every order is backed by our 30-day money-back guarantee. If it's not right for you, return it — no questions asked. Free US shipping on orders over $100.
