XM FITNESS Soft-Sided Ballast Plyo Box

SKU: 4331
4 reviews


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Regular price MSRP $449.99 Sale price
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3-in-1 Soft-Sided Ballast Plyometrics Box

Get the MOST STABLE 20", 24" and 30" tall plyobox, all in one.

A Stable Plyo Box with a Shifting Low Centre of Gravity

With the patent-pending WeightShift Technology, when the plyo box is turned, the ballast 'flows' to fill the lowest internal face of the inner plywood box. Now, you have a plyobox with optimal balance and stability, no matter which side/height you use.

This virtually eliminates shifting and tilting of the plyo box while in use.

This 3-in-1 Ballast Plyo Box is a staple item of any fitness studio or box. It allows you to customize your workout and adjust on the fly. This unmatched versatility removes clutter from your workout space. Simply rotate the plyo box to your desired height and jump. This item is soft and safe.

With a reinforced wooden core, surrounded with a multi-layered foam covering, safety and durability are of crucial importance.

The durable vinyl cover resists wear and tear while remaining firm even after heavy use. Never worry about footprints or dirt again, as the vinyl covering allows for easy cleanup.

Special Features:

  • Safest Plyo Box Available
  • Solid and Stable
  • 3 Ballast Balls in the Core
  • Durable Wood Interior Core
  • Multi-Layered Foam
  • Double Stitched Vinyl Upholstery
  • Resists Compression
  • 20”, 24” and 30” Heights in One Plyo Box


  • Ballast balls: 16cm diameter, 5.5 kg weight (x3)
  • Total Weight 80lbs / 36kg
  • 15mm wooden board constructed core
  • 70mm foam pad thickness
  • Length: 30"
  • Width: 20"
  • Height: 24"

Plyometric exercises are perfect to improve an athletes ability and skill and will seriously increase speed and strength. Plyometrics will improve the ability of an athlete to start quicker, accelerate faster, change direction more quickly. A must have for all athletes to improve these functions.

Customer Reviews
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Big Fan...

I just received my plyo box and I am extremely happy with the quality and ease in changing heights. I had originally purchased one from another store and it required me to take apart the box, to change around the heights for what I wanted. It was also way too big and bulky and I found I was never using it. I am a huge fan of Xtreme Monkey products and saw this plyo box on the Treadmill Factory website and decided to try this one out instead. It will definitely be getting regular use out of me! I continue to get excellent products from the Treadmill Factory and will continue to shop here in the future.


Plyo box

LOVE IT!!!!!!!!!!! It is everything and more I wanted. Great quality.

Andrew M.

Great, simple box

This box came exactly as advertised. It is well constructed, well balanced, and a great addition to my home gym.

Francesco c.


It's stable, heavy so you know its tough. And takes up less space then the others. Great product.