We offer discount for large quantity. Welcome to U!2X 6 Inch Boat Chair Patera Swivel Fishing Boat Marine Seat 360 Degree Rotation Universal Set 15.4x15.4x2cm4 Holes360 Degree Rolling Supports Non-Tilting Design and Good QualityThis standard pivot is designed to attach our chairs to the boat, but it is very versatile and fits many commercial applications such as buses, trucks, tractors, motorhomes, etc. This turntable can be drilled to make additional holes to fit most seats. Color: BlackMaterial: MetalSize: 15.4x15.4x2 cmPackage Contents:2x360 Degree Swivel SeatOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm. About UsWe provide good product with best price, we support wholesale order/