Features: The heavy-duty swivel seat base is constructed to handle rigorous, long-term use. Its solid steel plate and reinforced pivoting mechanism provide stability and consistent performance, even under frequent rotation and regular loading. With full 360° rotating capability, this 360 rotating car seat base allows easy access to the rear or side of the vehicle. The rotation is smooth and can be locked into place, adding convenience for activities like entering/exiting, working, or interacting with passengers. Specifications: Material: cold-rolled steel Color: black Size: 14.1" L × 15.2" W × 1.25" H Package includes: 1 x Swivel car seat base Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays