Squared Cjk Unified Ideograph-65b0 (U+1F21F) is a Unicode other symbol from the Enclosed Ideographic Supplement block. It resides on Plane 1 (SMP, Supplementary Multilingual Plane), has bidirectional class L (left-to-right), is not mirrored, and has combining class 0 (Not Reordered). In HTML it can be written as 🈟 or 🈟. Because it is outside the Basic Multilingual Plane, proper font support is required; otherwise a fallback box may be shown.