Feature 1SEAT SWIVEL BASE: Transform your fixed car seat into swivel seat, allowing passengers to easily adjust their seating location for convenient entry and exit or better interaction with fellow riders. 2ROBUST CONSTRUCTION: Designed with a heavy duty 12kg seat swivel base plate crafted from high hardness cold rolled steel, this 360 degree chair seat base offers exceptional strength and durability. 3RUSTPROOF: The seat rotating base features a black paint coating that effectively protects against wear, providing you with a lasting base that withstands the test of time. 4EASY OPERATING: The heavy duty seat base is equipped with a handle for easy control, allowing smooth 0 to 360 degree rotation in both forward and backward directions, making it user friendly for everyone. 5FIT FOR VARIOUS VEHICLES: This swivel seat base is compatible with a wide range of large vehicles, including RVs, business vehicles, and heavy duty trucks, making it ideal for seat conversions.Item Type: Seat Swivel BaseMaterial: Carbon steel + hot rolled steelRotation Angle: 0-360 degrees, clockwise or counterclockwiseBase Dimensions: Approx. 390 x 365mm / 15.35 x 14.37inFunction: Swivel seat base for seat modification, allowing fixed seats to be converted into swivel seats for convenient adjustment of seating direction, making it easier for passengers to get on and off or communicate with other occupantsInstallation: Installation may require additional transitional plates for oversized seats or drilling new holes for smaller seats, installation depends on the size of your seatApplication: Suitable for Most RV, business vehicle, and truck seat modifications Package List1 x Car Seat Swivel BaseNote1. Before installation, please familiarize yourself with the product. The installation process can be challenging, so it is strongly recommended to seek assistance from a professional engineer to ensure better shopping experience. 2. The turntable can be widely used. Before purchasing, please verify the dimensions. If the seat is too large, an additional transition plate may be needed for installation. If the seat is too small, new holes may need to be drilled. Therefore, the installation of the base depends on the size of your seat. 3. During the installation process, please pay attention to safety.