Limited Edition Jet Stream 4&1 6 Piece Set SanRIO Characters Collaboration. This is a limited edition set of the Jet Stream 4&1 pens, featuring a collaboration with Sanrio Characters. The set includes six brand -new, unopened pens, making it a perfect collectible or functional addition to your stationery collection. These high-quality pens are part of Mitsubishi Pencil’s uni line, renowned for smooth writing performance and reliability. The collaboration with Sanrio Characters adds a charming and exclusive touch, making this set a must-have for fans and collectors alike. Limited Edition Sanrio Characters Collaboration. Includes 6 pens in a single set. Brand : Mitsubishi Pencil / uni. Condition : Brand and unopened. C: Brand : Mitsubishi Pencil / uni. C:Product Type: Mechanical Pencil Set. C:Quantity: 6 pieces. C: Condition : New, Unused. C:Series: Jet Stream 4&1. C:Collaboration: Sanrio Characters. C:Material: Plastic (assumed). C: Color : Assorted (specific color s not specified). C:Category: Stationery / Writing Instruments / Mechanical Pencils. C:Country of Manufacture: Japan. C:Item Condition : and unopened. C:Special Features: Limited Edition, Collaboration Design. MITSUBISHI PENCIL / uni. Our store is located in Japan. We will help you to find what you are looking for by searching all over Japan. International Buyers – Please Note.