This property defines the Unicodes which belongs to Hanunoo block
Characters like ᜠ,ᜡ,ᜢ, etc. are listed under Hanunoo Block.
24 Characters are present in Hanunoo Block starting with the Unicode point U+1720 that represents the character ᜠ.
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.