This property defines the Unicodes which belongs to Meetei Mayek block
Characters like ꯀ,ꯁ,ꯂ, etc. are listed under Meetei Mayek Block.
58 Characters are present in Meetei Mayek Block starting with the Unicode point U+ABC0 that represents the character ꯀ.
Currently, as per latest version 15.0.0, Unicode supports 328 number of Block. Here are a few examples - Latin Extended E,Adlam,Aegean Numbers, etc.