The Cinnamoroll Ruler is an adorable licensed Sanrio stationery item featuring the beloved puppy character Cinnamoroll perched at the top. Crafted from lightweight AS resin or plastic, it measures roughly 14–17 cm (≈5.5–6.7 inches) in length, making it perfect for school bags or pencil cases. Available in slim straight or folding 30 cm variants, the ruler typically features pastel blue tones, Cinnamoroll-themed graphics, and in some designs a dangling charm or gold-foil accents for added cuteness. It’s ideal for young students and Sanrio fans who want to add a touch of kawaii charm to their measuring tools.