They all seem to be working fine.
My Supply Room: 2013
Pentel Arts Color Pen, 12-Color Set (S360-12) : Office Products : Arts, Crafts & Sewing
VTG Pentel Color Pens S360-36 Fine Point Yellow Carrying Case Japan
Pentel Color Pen, Fine Point Color Markers, Fiber Tip, Assorted Colors, Set of 18 (S360-18) : Artists Markers : Arts, Crafts & Sewing
Fiber-tipped sign pen offers a durable porous tip that is excellent for general writing, drawing, doodling and adding character to any signature. Radiant, water-based ink is perfect for anytime you put ink to paper. It is ideal for use in the home or studio by artists, designers and anyone who enjoys writing or drawing. Snap-fit cap prevents the firm, durable tip from drying out when not in use. Nonrefillable Sign Pens are certified AP nontoxic by ACMI.
Pentel Sign Pen, Fine Point, Assorted Color - 12 count
Pentel Permanent Marker Pen Bullet Tip Pack of 12 - Color: Black : Office Products
The Pentel Japan Water-Based Clean Color Pen Scs2-12 12 Colors Washable is a great way to express yourself with 12 vibrant colors! This high quality pen is perfect for drawing, sketching, and coloring with its water-based ink that is clean and safe to use. The pens are also easy to clean with soap and water, and are perfect for both adults and children alike. With this set, you can create beautiful works with precision and ease.
Pentel Washable Ink Color Marker Pen - 12 Color Set (Japan Import)
Vibrant water-based ink colors Durable fiber-tip produces fine lines Generous ink supply is ideal for drawing, coloring, writing, decorating, etc.
Pentel Color Pen, Fine Point Color Markers, Fiber Tip, Assorted Colors, Set of 18 (S360-18)
Misfill, Red Right Hand Edition — The Pen Addict
My Supply Room: 2013