Nikon WP-O1100 O-Ring for WP-N2 Waterproof Housing

The Nikon WP-O1100 O-Ring for WP-N2 Waterproof Housing is a replacement O-ring for the WP-N2 Waterproof Housing for the Nikon 1 J3 or 1 S1 camera. It's identical to the one supplied with the housing. The O-ring provides a watertight seal to safeguard the camera when the housing is submerged.