Description: 【Versatile Marine Seat Base】: Designed to fit a variety of vessels including speedboats, yachts, pontoon boats, fishing boats, bass boats, cargo ships, and RVs, this Boat Seat Pedestal offers exceptional versatility for all your marine adventures 【Construction】: Crafted from aluminum alloy and stainless steel materials, this Marine Pedestal ensures long term durability and resistance to harsh marine environments 【Compact Dimensions】: With dimensions of 6.89inchx6.89inchx17.72inch, the Boat Chair Base is compact yet sturdy enough to provide reliable support without taking up excessive space on your vessel 【Easy Installation】: The quick release design allows for straightforward installation and removal, making it convenient to set up or store as needed 【Complete Package】: Each purchase includes a marine seat base in the package list, ensuring you have everything you need for immediate use upon delivery Specification: 17.5cmx17.5cmx45cm/6.89inchx6.89inchx17.72inch Package Includes: 1 Boat Seat Pedestal Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.