I bought this item from another source and it arrived today.  My hubby is a physicist and believe you me, he thoroughly looked over the workmanship of this item when it arrived.  It is very well constructed and has heavy sewing at the handles to make handles very secure.  The wheels seem well designed and attached securely.  The handle easily slides up and down and seems very sturdy.  I have not travelled with it yet as it arrived today.  I would highly recommend this product !!!!