Every month we hit goal we get 500$ for some new toys. Few month's ago we got medicine balls, then we got kettlebells then we got plyo boxes. What should we get next? I was thinking a Safety Squat bar, or a jump stretch platform but then again this for a commercial gym(although its a bit more serious than your regular commercial gym) not a powerlifting gym. I was also thinking reverse hyper but the budget is 500$.

Ideas?