Ninja Memo Board Pin Set – Kunai & Shuriken is a playful set of ninja‑style memo magnets that holds notes, stickers, and photos while decorating your fridge or metal board. Each piece is designed to accept a 5 mm diameter round magnet so it can snap firmly onto any magnetic surface. Key Features Iconic kunai knife and shuriken shapes make your memos look like they were pinned by a ninja attack, adding fun and character to any space. Integrated 5 mm magnet cavity in each model fits standard neodymium magnets, giving strong holding power in a compact form. 3D‑printed geometry with sharp, clean lines but slightly softened edges for everyday handling comfort and safety.