About this item Heavy Duty Capacity: With a capacity of 4400lbs or 8800lbs, these machinery mover dollies are perfect for transporting heavy industrial equipment in your warehouse or workshop. No more struggling with heavy loads or risking injury to your employees Random Orientation Adjustment: The orientation of the roller skates can be rotated 360 degrees., increasing the flexibility of handling and movement，suitable for using even in tight spaces Scientific Design: One-piece cast steel wheel frame, anti-deformation, more durable, and the screws of the cast steel wheel frame will not scratch your hands when in use. Convenient push-pull handle with good grip Durable and Sturdy: The machinery skates use high quality briefing material to prevent scratching your floor, the texture is hard, not easy to bend, not easy to deform. 3 PU rollers 4.25" board height and 6.5" pad diameter. EXCEIIENT SERVICE: We assure you that if you buy our mechanical skates, we will give you a 90-day warranty. If there is a product quality problem within the time limit, please contact us in time › See more product details