After posting the previous 2 star review I was contacted by the customer service department. They asked me what they could do to make it correct. We corresponded and settled on proper compensation. They were very easy to work with and did what they said they would do. As of 11/26/18 I am updating the review to reflect the excellent customer service I received. Thank you for the quick and proper response.Next is the original review - Ordered 4 of these for a client. When they showed up, an entire wheel had fallen off. Upon closer inspection I discovered the bearings were damaged. Upon closer inspection of the other 3 I found that the wheel bearings were of different types and all had been damaged or had debris such as grit or rust with absolutely no grease in any of the 16 total wheels. Next issue is the rusted grade 5 bolts that hold the trolley side on the main pin. The shear strength of a grade 5 10mm bolt is approximately 7952 LBS. Per code all lifting equipment should have a 5/1 design factor. That means if it_ a 6000 LBS trolley it should be able to handle 5x the rated amount (30,000 LBS.) Though admittedly the shear force on that bolt is likely to be less than the total of the bolts total shear strength it should in my opinion be better than a grade 5 10mm bolt and certainly not rusted or damaged.I give it 2 stars because the paint was new and I didn_ find any issues with the welds.
Link Lin 
