BandBell®️ RhinoFlex®️ Bar


The RhinoFlex® Bar works like a steel barbell, only better because there’s no stress or pain on the joints.

  • Length: 82″
  • Bar Diameter: 1-1/2″
  • Loading Sleeve: 14-1/2″
  • Weight: 9 lbs.
  • Patented Design: Protected by US Patent No. 10,967,216

The RhinoFlex® works like a steel barbell, only better because there’s no stress or pain on the joints.

But how, what’s happening?

With every repetition, the RhinoFlex®️ Bar flexes slightly and activates the stabilizing muscles of the shoulders, hips and knees to initiate a more perfect mechanically functional joint. It’s that simple.

The RhinoFlex®️ activates the joints so they work, mechanically, at their optimal performance level. And, the more stable the joint, the better the range of motion and force output by the body.


  • Length: 82″
  • Bar Diameter: 1-1/2″
  • Loading Sleeve: 14-1/2″
  • Weight: Rhino- 9 lbs. Rhino HD - 10 lbs.
  • Patented Design: Protected by US Patent No. 10,967,216


Jim Seitzer; a national-level bodybuilder and powerlifter, also one of the founding members of Westside Barbell. 

As a 35-year veteran of bodybuilding and powerlifting, Jim was no stranger to injury. The idea for the Bandbell®️ Barbell came when Jim was working through a shoulder injury. 

Being the motivated athlete he was, Jim started experimenting with exercises that would allow him to keep training despite the injury. 

He began benching with a 7ft oak broomstick, adding resistance bands and 25-lb kettlebells, hung from either end. This set-up allowed him to perform the bench press without pain. 

What started out in 2006 as a collaborative effort between Lou and Jim Seitzer has evolved through five prototypes to become the incredibly strong, kinetic-energy dynamo that it is today. This hand-made Bar can routinely handle weights in excess of 200 lbs every day - all day long.

Easy to load, it’s perfect for single band rehab setups all the way up to complex kinetic variations using multiple bands with kettlebells, weights, chains and the new BandBell®️ Anchor Loaders™ and Strap-n-Hooks™. 

With endless variations to choose from, nervous system accommodation is a thing of the past.