About Squirmy Worm by Eumer:

The squirmy wormy is a fly pattern that originated in the USA and is based on a relatively new material based on silicona, incredibly stretchy rubbery.

You'll struggle to find a worm imitation anywhere near as lifelike or effective as the Eumer Squirmy Worm.

Some people think it crosses the line between fly and lure, but it's really just a clinically obese Apps bloodworm. On the right day, it's a really effective pattern to try.