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 Andrew Walton

Nice product but limited capacity. I confess I didn't read all 41 reviews before purchasing this product. I went by the overall rating and read a selection of reviews. There are three problems. First, the header lists a 135-pound capacity for a four-pack. The detailed description states a capacity of 135 lb each. I used them to move a 400 lb table and the product didn't work. Second, they came without literature. That tells me that there is no company behind the product. Use at your own risk. Third, the description says not to use them on (soft?) wooden floors. Don't use them on carpets in my experience, they tip over very easily. I recommend this product for hard, permanently smooth floors. Obstacles such as cracks, etc. may cause the product to tip over and bend. As soon as one of the sleeves warps, the set becomes unusable.