Ideographic Level Tone Mark (U+302A) is a Unicode nonspacing mark from the CJK Symbols and Punctuation block. It resides on Plane 0 (BMP, Basic Multilingual Plane), has bidirectional class NSM (nonspacing mark), is not mirrored, and has combining class 218 (Below Left). In HTML it can be written as 〪 or 〪.