This property defines the Unicodes which belongs to Balinese block
Characters like ᬀ,ᬁ,ᬂ, etc. are listed under Balinese Block.
126 Characters are present in Balinese Block starting with the Unicode point U+1B00 that represents the character ᬀ.
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.