The High Invasion — Halloween Limited Edition Aluminum HerbSaver Grinder

The High Invasion — Metal Edition. The cosmic artwork — UFOs, alien energy, planets — laid onto a blacked-out anodized body machined from aircraft-grade aluminum.

Whether the signal came from Area 51 or somewhere much higher, the stash has been discovered.

The anodised black is bonded into the metal rather than painted on, so it won’t chip, peel or fade — and neon green against a blacked-out body is the sharpest pairing in the collection. Metal teeth cut a tighter grind than plastic can, and when it needs a deep clean you can soak it in isopropyl.