2 inch iron coffin nails (these are hand forged subsitutes to actual coffin nails, I promise im not robbing any graves to get these haha).
 
Commonly used in protection magick as well as to break curses, reverse spells, wealth & money spells or to seal / anchor down magickal aspects of a spell.
 
You may also use to scribe in candle magick
 
This listing price is for a single nail (and brief history card)