This property defines the Unicodes which belongs to Batak block
Characters like ᯀ,ᯁ,ᯂ, etc. are listed under Batak Block.
57 Characters are present in Batak Block starting with the Unicode point U+1BC0 that represents the character ᯀ.
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.