The 3-tier serving cart features two spacious storage shelves to give you ample storage space while saving you floor space. This rolling bar cart is equipped w/ 4 easy roll caster wheels so you can effortlessly move the cart around & two of the wheels are equipped w/ a lock to keep the cart in place. The pallet of the handrail cart is thickened, and the load-bearing capacity is stronger The top guardrail is increased to better protect the top items Armrest handle, more comfortable to use This rolling bar cart is equipped w/ 4 easy roll caster wheels so  two of the wheels are equipped w/ a lock to keep the cart in place.The pallet of the handrail cart is thickened, and the load-bearing capacity is stronger The top guardrail is increased to better protect the top items Armrest handle, more comfortable to use