This is the only bed frame in the marketplace that meets new stringent California ADA law for accessible rooms. It features extra-long side rails made of heavy-duty high carbon recycled railroad T-rail. Its wedge lock leg design, which becomes stronger with use, includes the permanently attached Lev-R-Lock® locking mechanism. It’s quick and easy to assemble – no nuts, bolts, or tools needed. Water-based lead-free black finish. Fits Queen, Eastern King, and California King Beds. This Item cannot be used with Bunkie Boards. Replaces 3660960