It's a 70mm 7 gram sinking stickbait that used to be made by Storm. Looks a bit like the Storm Gomoku Flutter Slim.
Most fish hit it on the drop as it resembles a dying baitfish. Runs subsurface on a twitch or slow roll retrieve. Deadly on snapper, tailor, bream, flathead, grassies, bass, dart and trevs. Best used in water from 10cm to 4m deep...
Storm stopped making them about two years ago and I have been searching the world for them. Kyle just got 5 more from Malaysia, I recently got 15 from China and I'm waiting on some more deliveries from Israel and Latvia!