Wand

A single-handed delicate implement of wood, bone, crystal, or other exotic materials which is commonly used as a focus to assist with arcane spellcasting.

Spellcasting Focus. An arcane focus is a special item designed to channel the power of arcane spells. A sorcerer, warlock, or wizard can use such an item as a spellcasting focus, using it in place of any material component which does not list a cost.