Nauticam port extensions to adapt various lenses to fit one port. These lock in place with port and housing. Comes in N120 (DSLR), N100 (mirrorless) and N85 (micro 4/3rds) mount sizes. Includes cover, extra oring and silicone grease.
In short, the 10Bar snoot with laser pointer is a big winner. It was so popular on my trip that another guest bought it from me to use for the rest of her vacation, and I ordered a replacement as soon as I returned home.