Our Caster Wheels for bed frames are an easy, reliable way to replace a lost or damaged wheel. Styled to fit almost any bed frame, these casters are made from durable, tested nylon for added support. The twin-wheel design allows for mobility and stability. These casters were tested and can withstand 150 pounds of weight per wheel. Four wheels come in each box - two with brakes to prevent movement. Four nylon inserts are also included to fit the casters to the bed frame legs.