Level Up Technique Through Smart Practice
Master your serve faster with the Threo training belt. It keeps the ball in play, so you can focus on your skills. It is excellent for improving consistency and boosting confidence on the court.
Elastic Cord
This trainer stretches far without snapping, making it safe for high-energy routines. It absorbs shocks smoothly, preventing strain on arms and shoulders.


Universal Size
The Threo strap fits all volleyballs tightly, ensuring they stay in place during training. No need to adjust often, saving time and reducing frustration.
Durable Stitching
Our volleyball holds up through daily use without tearing or fraying. It withstands hard spikes and serves, offering long-term value.

















Ella K.
Love how easy it is to set up. Now I can keep hitting until I get it right without taking breaks to look for my ball.
Dylan H.
My coach recommended this, and I’m glad! It’s simple to set up, and the ball stays put during every serve. I get to hit harder too.
Noah V.
My serves have gotten much more accurate. I use this strap every other day, and it’s holding up strong. Totally worth getting.
Brielle M.
No more chasing stray shots! I love how the stretchy cord absorbs the force. I get to repeat serves quickly, which helps me improve fast.
Mason W.
I use this every day after school. The belt fits well on any volleyball and saves a lot of time. Super useful for practicing at home.
Alexa O.
My sister and I both use this. The strap fits all our balls, and we don’t have to stop to adjust anything. Training is way smoother now.
Ben C.
I love how this keeps me focused on my skills instead of chasing balls. The cord’s length is perfect for our small yard.
Mia G.
Really helps me work on my jumping serves. The elastic is gentle on my shoulders, so I don’t get tired quickly.
Ava L.
Bought this for my daughter, and she loves it. Great help with mastering technique. No more wasted time running after volleyballs!
Ivy P.
Makes practice way more effective. The elastic doesn’t snap even with strong hits, and my arm doesn’t feel sore after many reps.