This property defines the Unicodes which belongs to Tagbanwa block
Characters like ᝠ,ᝡ,ᝢ, etc. are listed under Tagbanwa Block.
21 Characters are present in Tagbanwa Block starting with the Unicode point U+1760 that represents the character ᝠ.
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.