VEVOR Utility Service Cart, 2 Shelf 550LBS Heavy Duty Plastic Rolling Utility Cart with 360° Swivel Wheels, Medium Lipped Shelf, Ergonomic Storage Handle for Warehouse/Garage/Cleaning/Office

Other casters may not be suitable for this product. The center distance between the mounting holes on the short side of the wheel is 45mm, and the center distance between the mounting holes on the long side is 74mm.

The height between the bottom shelf and the bottom of the top shelf is 56cm.

The handle is removable, but it is troublesome to install it again.

Yes, the handle has a storage compartment. The product description states that it has an "ergonomic push handle with a built-in storage compartment, for optimal hand placement, safe control, less fatigue operation, and additional storage."

Yes, according to the product description, it has lockable swivel wheels that support 360-degree flexible movement and can be locked for stability.