At Arthur Black (General Smiths) Ltd we produce these steel framed Bosun's Chairs. We have recently seen a rise in demand in this particular product and so have upped our production so that we now carry a small amount of stock items ready to ship to customers quickly.
The steel frames and fiberglass seats allow for a longer and more effiecient work period as the person being suspended does not tire as quickly as he/she would do in a harness alone. These seats are tested and galvanised, ensuring that the product will be safe to use and will be hardy enough to last in most climates.