Garelick/Eez-In 48104-01 Provides Extra Seating In The Cockpit Mounts On Either Starboard Or Port Side - Shur Loc Catches (76000) Provide Permanent Or Temporary Mounting Firm 2.5" (6Cm) Thick Resilient Foam Marine Grade White Vinyl Covered Seat 18" X 16" (46 X 41Cm) Anodized aluminum tube frame