HLC Metal Bed Frame Box Spring Base with Removable Wheels and Adjustable Sizes to Any Beds Adjustable metal bed frame, box spring needed. Perfect amount of support and Stability with 8 legs and center bar. 74.8 inches x 39 inches x 7.48 inches, 5 choices in width from 39" -78"(54", 60" ,71-1/2"). Sturdy steel construction,hold up to 400 KG; Easy and quick to assembly. 8 removable wheels in total,4 wheels with solid locking mechanism keep it from moving.