https://amzn.to/3OGXMED Pentel GraphGear 1000 Mechanical Pencil 0.5mm Premier Drafting Kit w/ 1 Pencil, 1 Eraser Refill Tube & 1 Eraser on sale for $14.32 - $0.76 when you check out via Subscribe & Save = $13.60. Shipping is free w/ Prime or on orders $35+.