The government is seeking information on two heavy-duty, hydro-pneumatic submarine fenders, equivalent to Yokohama type, with dimensions of 4.5 meters in diameter and 9 meters in length. The fenders must be unsinkable, high-capacity energy absorbers with low reaction force, and include a minimum two-year manufacturer’s warranty. This is a Request for Information (RFI) for market research only, not a solicitation for bids or proposals. No budget amount, submission timeline, or performance location is specified in the description. Responses are voluntary, and the government will not pay for any costs incurred in replying.