Review on Ronlap 6-Inch Steel Tri-Dolly: 3-Wheel Furniture Mover's Dolly with Lifter - Heavy-Duty Rollers for Heavy Furniture - Moving Triangle Dolly with Swivel Caster - 130 Lbs Capacity Each Pack - 4 Pack, Orange by Mark Clark

avoid this product. Having four trolleys working independently to move the couch is an utter pain if you're doing anything other than moving it across concrete. Also, none of the wheels want to move in the right direction. If heavy furniture is placed on it, the wheels will collapse and the furniture will fall to the ground. Regarding the weight estimate, one of the wheels buckled when it had a heavy piece of furniture on it and its weight was nowhere near the weight of the wheel. I would steer clear of that and just use a standard carriage. It did more damage to my furniture than anything else.