Olympus PT-037 Underwater Housing for SP-550 UZ Compatible models: Olympus digital camera SP-550UZ/SP-560UZ Pressure resistance: Depth of up to 40 m Clear Polycarbonate Construction: Durable and resistant to corrosion, Clear view of the camera information and control functions Lens window: FL glass, Operation buttons: ABS + SUS (insert), O-rings: Silicon rubber