Most circular serving trolleys feature swivel castors (often four 360° wheels), with many listings noting lockable or directional wheel options and ergonomic handles to make moving and securing the cart easier.
Some round carts include rotating features such as a 360° spin for tiers or a circular turntable on a middle shelf so items can be turned within easy reach.
Most listings note that adult assembly is required. Some say tools are provided, some say only some tools are provided, and at least one listing notes tools are not provided—check the product details for exact assembly requirements.