This property defines the Unicodes which belongs to Ol Chiki block
Characters like ᱐,᱑,᱒, etc. are listed under Ol Chiki Block.
48 Characters are present in Ol Chiki Block starting with the Unicode point U+1C50 that represents the character ᱐.
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.