Struggling over which gym to join? Men's Health took it upon themselves to assess which five pieces of fitness equipment are absolute "must haves" in your prospective club's arsenal. Even cooler (at least from where we're sitting ;), TRX makes 3 out of 5 of these things.
Check out why TRX Suspension Trainers, Kettlebells, Battle Ropes, Trap or Hex Bar, and Sleds are worth their weight in gold (ie. your time, money, and energy).