Porter PhysED Fitness
TNT Hellbox Belt Squat Attachment
TNT Hellbox Belt Squat Attachment
TNT Hell Box Attachment – The Gold Standard of Leverage Belt Squat Attachments
Set the standard with the TNT Hell Box—our premium leverage belt squat attachment built for serious lifters. With 5 height settings, 11 angle adjustments, and dual 12" weight horns, it’s designed for total customization and control. Slotted mounting holes ensure easy installation on any lever arm, while the 14" knurled handle delivers unmatched stability under load. More attachments for the Hellbox coming soon!
Included Components: TNT handles, dual weight horns and angle adjuster
Lead Time: 1 week
Material Type: Steel
Finish Type: Powder coat
Weight: 30lbs
Recommended Exercises with Product: Belt Squats, Sissy Squats, Deadlifts, Viking Press, Rows
Couldn't load pickup availability

Worth every penny! This attachment changes the feel and function of my Fringe Sport Mammoth Belt Squat so drastically I find myself coming up with excuses to use it more in my training. Very high quality and built to last. Installation was also a breeze. I wouldn’t recommend anyone to use the mammoth belt squat without investing in the Hellbox attachment as well.
Great product. Built well. Enhanced my Fringe Belt squat. The missing piece!
Does everything it advertises to do and then some. Great attachment
This piece is great! I love how the handle adjusts so you can get great stability on different movements (calf raises vs belt squat). it seems very well built and overall an awesome upgrade for my belt squat.
I only gave 4 stars because the weight horns ship as an open tube and gives what is otherwise a polished piece a very unfinished look. I ordered these caps off of amazon as a fix https://www.amazon.com/dp/B08H74MGHG?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1, but feel that this should be included.