Vermin has a dark gray and translucent red helmet piece that he shares with young Krux and Slackjaw; the same mold was used for a dark gray and orange piece worn by Commander Blunck. He has a double-sided head and printed legs that he shares with Rivett, Slackjaw, and Tannin, and a dark red and dark gray torso he shares with Slackjaw.
There are two versions of Vermin, differentiated from each other by their different breastplates. The one from his set appearance is shared with Commander Raggmunk, Rivett, and a statue from 70617 Temple of the Ultimate Ultimate Weapon. The foil pack version comes with Commander Blunck's breastplate piece and additional accessories.