Steel Mechanism for Swivel Rocking Chairs ASSEMBLY REQUIRED: Fully Assembled. DIMENSIONS: 9"D x 3"W x 9"H; Weight of Mechanism: 5 pounds. BUY WITH CREDENCE: The quality and beauty of our products began from our passion and attention to details. Having any issues with your order? Please feel free to contact us and we will do our best to satisfy your needs. We guarantee – all questions will be solved very quickly.