With a 7mm tube recast into the blank, these circuit board pen blanks are made of genuine, non-functional circuit board material that makes a great conversation piece and looks great too! No drilling required, these blanks can be cut in two if needed for smaller projects like key rings, etc.

• Made of genuine circuit board
• 7mm brass pen tube is precast into the blank
• No drilling or gluing required, simply trim barrel to appropriate length and turn
• Can be cut to length as needed
• Makes a great conversation piece
• 5" Long blank