Heavy-duty steel dolly makes it easy for you to transport & store four-leg stack chairs. Stack & store up to 10 chairs. Back legs of the bottom chair fit in special grooves to keep the chairs securely on the dolly. Heavy-duty wheels deliver a smooth ride. Two wheels lock for stable unloading. Dolly works well with Lorell stack chair models LLR83112, LLR83113, LLR83114, LLR83115 & LLR99969.