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.

















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.
Owen S.
Lets me practice late in the day without chasing my ball. I’ve noticed my hitting has improved a lot because I can do more reps.
Henry A.
This belt fits snug and holds through tough practice. No issues with slipping, and I learned new tricks faster than before.
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.
Riley E.
Stitching is so strong! I’ve used it daily, and it still looks new. It wraps tightly around the volleyball and never slips off.
Sam D.
Really good for practicing alone in my backyard. The stitching never frays, even after weeks of hard serves. I like it a lot.
Blake N.
Super easy to use and delivers results fast. My friend and I both noticed better serves after a couple weeks of using this strap.
Chloe M.
Works well, makes serving practice much easier.
Sophie Z.
The strap is awesome for practice in small spaces. I get to focus on hitting without losing track of the ball. It’s been super helpful!
Grace R.
Helpful for learning serves, saves lots of time.