Olympus O-RING UW FRONT PFL-01 FL-20 Pan & Tilt Heads ProMaster solid color backdrops are

ProMaster solid color backdrops are made from a polyester/cotton blend

This arm also features a unique hydraulic lock that ensures no movement with the minimum of effort

Lanyard with cord lock

Secures to the outside of the Ikelite lens port offering easy installation and removal

The Canon LP-E17 Lithium-Ion Battery Pack is a replacement battery

Olympus O-RING UW FRONT PFL-01 FL-20 Pan & Tilt Heads ProMaster solid color backdrops areReplacement front O ring for the PT Underwater Protective Case PFL 01 for FL 20 Flash . Creates watertight seal. Underwater photographic equipment cannot be watertight unless the O rings that seal it are flawless. Always carry spare O rings in your camera case. O rings are the most important components of your underwater camera system. If the O ring is lubricated, it will be elastic enough to shape itself uniformly around the channel. If it is dry,